8058196677
InstCombine operates on the basic premise that the operands of the currently processed instruction have already been simplified. It achieves this by pushing instructions to the worklist in reverse program order, so that instructions are popped off in program order. The worklist management in the main combining loop also makes sure to uphold this invariant. However, the same is not true for all the code that is performing manual worklist management. The largest problem (addressed in this patch) are instructions inserted by InstCombine's IRBuilder. These will be pushed onto the worklist in order of insertion (generally matching program order), which means that a) the users of the original instruction will be visited first, as they are pushed later in the main loop and b) the newly inserted instructions will be visited in reverse program order. This causes a number of problems: First, folds operate on instructions that have not had their operands simplified, which may result in optimizations being missed (ran into this in https://reviews.llvm.org/D72048#1800424, which was the original motivation for this patch). Additionally, this increases the amount of folds InstCombine has to perform, both within one iteration, and by increasing the number of total iterations. This patch addresses the issue by adding a Worklist.AddDeferred() method, which is used for instructions inserted by IRBuilder. These will only be added to the real worklist after the combine finished, and in reverse order, so they will end up processed in program order. I should note that the same should also be done to nearly all other uses of Worklist.Add(), but I'm starting with just this occurrence, which has by far the largest test fallout. Most of the test changes are due to https://bugs.llvm.org/show_bug.cgi?id=44521 or other cases where we don't canonicalize something. These are neutral. One regression has been addressed in D73575 and D73647. The remaining regression in an shl+sdiv fold can't really be fixed without dropping another transform, but does not seem particularly problematic in the first place. Differential Revision: https://reviews.llvm.org/D73411
1211 lines
43 KiB
LLVM
1211 lines
43 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -instcombine -S | FileCheck %s
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target datalayout = "e-p:64:64-p1:16:16-p2:32:32:32-p3:64:64:64"
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%intstruct = type { i32 }
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%pair = type { i32, i32 }
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%struct.B = type { double }
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%struct.A = type { %struct.B, i32, i32 }
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%struct.C = type { [7 x i8] }
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@Global = external global [10 x i8]
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@Global_as1 = external addrspace(1) global [10 x i8]
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; Test noop elimination
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define i32* @test1(i32* %I) {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: ret i32* [[I:%.*]]
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;
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%A = getelementptr i32, i32* %I, i64 0
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ret i32* %A
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}
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define i32 addrspace(1)* @test1_as1(i32 addrspace(1)* %I) {
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; CHECK-LABEL: @test1_as1(
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; CHECK-NEXT: ret i32 addrspace(1)* [[I:%.*]]
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;
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%A = getelementptr i32, i32 addrspace(1)* %I, i64 0
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ret i32 addrspace(1)* %A
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}
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; Test noop elimination
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define i32* @test2(i32* %I) {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: ret i32* [[I:%.*]]
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;
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%A = getelementptr i32, i32* %I
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ret i32* %A
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}
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; Test that two array indexing geps fold
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define i32* @test3(i32* %I) {
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; CHECK-LABEL: @test3(
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; CHECK-NEXT: [[B:%.*]] = getelementptr i32, i32* [[I:%.*]], i64 21
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; CHECK-NEXT: ret i32* [[B]]
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;
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%A = getelementptr i32, i32* %I, i64 17
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%B = getelementptr i32, i32* %A, i64 4
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ret i32* %B
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}
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; Test that two getelementptr insts fold
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define i32* @test4({ i32 }* %I) {
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; CHECK-LABEL: @test4(
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; CHECK-NEXT: [[B:%.*]] = getelementptr { i32 }, { i32 }* [[I:%.*]], i64 1, i32 0
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; CHECK-NEXT: ret i32* [[B]]
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;
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%A = getelementptr { i32 }, { i32 }* %I, i64 1
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%B = getelementptr { i32 }, { i32 }* %A, i64 0, i32 0
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ret i32* %B
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}
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define void @test5(i8 %B) {
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; This should be turned into a constexpr instead of being an instruction
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; CHECK-LABEL: @test5(
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; CHECK-NEXT: store i8 [[B:%.*]], i8* getelementptr inbounds ([10 x i8], [10 x i8]* @Global, i64 0, i64 4), align 1
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; CHECK-NEXT: ret void
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;
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%A = getelementptr [10 x i8], [10 x i8]* @Global, i64 0, i64 4
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store i8 %B, i8* %A
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ret void
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}
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define void @test5_as1(i8 %B) {
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; This should be turned into a constexpr instead of being an instruction
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; CHECK-LABEL: @test5_as1(
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; CHECK-NEXT: store i8 [[B:%.*]], i8 addrspace(1)* getelementptr inbounds ([10 x i8], [10 x i8] addrspace(1)* @Global_as1, i16 0, i16 4), align 1
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; CHECK-NEXT: ret void
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;
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%A = getelementptr [10 x i8], [10 x i8] addrspace(1)* @Global_as1, i16 0, i16 4
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store i8 %B, i8 addrspace(1)* %A
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ret void
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}
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%as1_ptr_struct = type { i32 addrspace(1)* }
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%as2_ptr_struct = type { i32 addrspace(2)* }
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@global_as2 = addrspace(2) global i32 zeroinitializer
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@global_as1_as2_ptr = addrspace(1) global %as2_ptr_struct { i32 addrspace(2)* @global_as2 }
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; This should be turned into a constexpr instead of being an instruction
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define void @test_evaluate_gep_nested_as_ptrs(i32 addrspace(2)* %B) {
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; CHECK-LABEL: @test_evaluate_gep_nested_as_ptrs(
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; CHECK-NEXT: store i32 addrspace(2)* [[B:%.*]], i32 addrspace(2)* addrspace(1)* getelementptr inbounds (%as2_ptr_struct, [[AS2_PTR_STRUCT:%.*]] addrspace(1)* @global_as1_as2_ptr, i16 0, i32 0), align 8
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; CHECK-NEXT: ret void
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;
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%A = getelementptr %as2_ptr_struct, %as2_ptr_struct addrspace(1)* @global_as1_as2_ptr, i16 0, i32 0
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store i32 addrspace(2)* %B, i32 addrspace(2)* addrspace(1)* %A
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ret void
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}
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@arst = addrspace(1) global [4 x i8 addrspace(2)*] zeroinitializer
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define void @test_evaluate_gep_as_ptrs_array(i8 addrspace(2)* %B) {
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; CHECK-LABEL: @test_evaluate_gep_as_ptrs_array(
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; CHECK-NEXT: store i8 addrspace(2)* [[B:%.*]], i8 addrspace(2)* addrspace(1)* getelementptr inbounds ([4 x i8 addrspace(2)*], [4 x i8 addrspace(2)*] addrspace(1)* @arst, i16 0, i16 2), align 4
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; CHECK-NEXT: ret void
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;
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%A = getelementptr [4 x i8 addrspace(2)*], [4 x i8 addrspace(2)*] addrspace(1)* @arst, i16 0, i16 2
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store i8 addrspace(2)* %B, i8 addrspace(2)* addrspace(1)* %A
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ret void
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}
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define i32* @test7(i32* %I, i64 %C, i64 %D) {
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; CHECK-LABEL: @test7(
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; CHECK-NEXT: [[A:%.*]] = getelementptr i32, i32* [[I:%.*]], i64 [[C:%.*]]
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; CHECK-NEXT: [[B:%.*]] = getelementptr i32, i32* [[A]], i64 [[D:%.*]]
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; CHECK-NEXT: ret i32* [[B]]
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;
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%A = getelementptr i32, i32* %I, i64 %C
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%B = getelementptr i32, i32* %A, i64 %D
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ret i32* %B
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}
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define i8* @test8([10 x i32]* %X) {
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;; Fold into the cast.
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; CHECK-LABEL: @test8(
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; CHECK-NEXT: [[B:%.*]] = bitcast [10 x i32]* [[X:%.*]] to i8*
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; CHECK-NEXT: ret i8* [[B]]
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;
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%A = getelementptr [10 x i32], [10 x i32]* %X, i64 0, i64 0
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%B = bitcast i32* %A to i8*
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ret i8* %B
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}
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define i32 @test9() {
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; CHECK-LABEL: @test9(
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; CHECK-NEXT: ret i32 8
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;
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%A = getelementptr { i32, double }, { i32, double }* null, i32 0, i32 1
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%B = ptrtoint double* %A to i32
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ret i32 %B
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}
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define i1 @test10({ i32, i32 }* %x, { i32, i32 }* %y) {
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; CHECK-LABEL: @test10(
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; CHECK-NEXT: [[TMP_4:%.*]] = icmp eq { i32, i32 }* [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: ret i1 [[TMP_4]]
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;
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%tmp.1 = getelementptr { i32, i32 }, { i32, i32 }* %x, i32 0, i32 1
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%tmp.3 = getelementptr { i32, i32 }, { i32, i32 }* %y, i32 0, i32 1
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;; seteq x, y
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%tmp.4 = icmp eq i32* %tmp.1, %tmp.3
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ret i1 %tmp.4
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}
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define i1 @test11({ i32, i32 }* %X) {
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; CHECK-LABEL: @test11(
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; CHECK-NEXT: [[Q:%.*]] = icmp eq { i32, i32 }* [[X:%.*]], null
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; CHECK-NEXT: ret i1 [[Q]]
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;
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%P = getelementptr { i32, i32 }, { i32, i32 }* %X, i32 0, i32 0
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%Q = icmp eq i32* %P, null
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ret i1 %Q
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}
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; PR4748
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define i32 @test12(%struct.A* %a) {
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; CHECK-LABEL: @test12(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[G3:%.*]] = getelementptr [[STRUCT_A:%.*]], %struct.A* [[A:%.*]], i64 0, i32 1
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; CHECK-NEXT: store i32 10, i32* [[G3]], align 4
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; CHECK-NEXT: ret i32 10
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;
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entry:
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%g3 = getelementptr %struct.A, %struct.A* %a, i32 0, i32 1
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store i32 10, i32* %g3, align 4
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%g4 = getelementptr %struct.A, %struct.A* %a, i32 0, i32 0
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%new_a = bitcast %struct.B* %g4 to %struct.A*
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%g5 = getelementptr %struct.A, %struct.A* %new_a, i32 0, i32 1
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%a_a = load i32, i32* %g5, align 4
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ret i32 %a_a
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}
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; PR2235
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%S = type { i32, [ 100 x i32] }
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define i1 @test13(i64 %X, %S* %P) {
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; CHECK-LABEL: @test13(
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; CHECK-NEXT: [[C:%.*]] = icmp eq i64 [[X:%.*]], -1
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; CHECK-NEXT: ret i1 [[C]]
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;
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%A = getelementptr inbounds %S, %S* %P, i32 0, i32 1, i64 %X
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%B = getelementptr inbounds %S, %S* %P, i32 0, i32 0
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%C = icmp eq i32* %A, %B
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ret i1 %C
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}
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define <2 x i1> @test13_vector(<2 x i64> %X, <2 x %S*> %P) nounwind {
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; CHECK-LABEL: @test13_vector(
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; CHECK-NEXT: [[C:%.*]] = icmp eq <2 x i64> [[X:%.*]], <i64 -1, i64 -1>
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; CHECK-NEXT: ret <2 x i1> [[C]]
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;
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%A = getelementptr inbounds %S, <2 x %S*> %P, <2 x i64> zeroinitializer, <2 x i32> <i32 1, i32 1>, <2 x i64> %X
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%B = getelementptr inbounds %S, <2 x %S*> %P, <2 x i64> <i64 0, i64 0>, <2 x i32> <i32 0, i32 0>
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%C = icmp eq <2 x i32*> %A, %B
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ret <2 x i1> %C
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}
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define <2 x i1> @test13_vector2(i64 %X, <2 x %S*> %P) nounwind {
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; CHECK-LABEL: @test13_vector2(
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; CHECK-NEXT: [[DOTSPLATINSERT:%.*]] = insertelement <2 x i64> undef, i64 [[X:%.*]], i32 0
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; CHECK-NEXT: [[TMP1:%.*]] = shl <2 x i64> [[DOTSPLATINSERT]], <i64 2, i64 undef>
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; CHECK-NEXT: [[TMP2:%.*]] = icmp eq <2 x i64> [[TMP1]], <i64 -4, i64 undef>
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; CHECK-NEXT: [[C:%.*]] = shufflevector <2 x i1> [[TMP2]], <2 x i1> undef, <2 x i32> zeroinitializer
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; CHECK-NEXT: ret <2 x i1> [[C]]
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;
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%A = getelementptr inbounds %S, <2 x %S*> %P, <2 x i64> zeroinitializer, <2 x i32> <i32 1, i32 1>, i64 %X
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%B = getelementptr inbounds %S, <2 x %S*> %P, <2 x i64> <i64 0, i64 0>, <2 x i32> <i32 0, i32 0>
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%C = icmp eq <2 x i32*> %A, %B
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ret <2 x i1> %C
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}
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; This is a test of icmp + shl nuw in disguise - 4611... is 0x3fff...
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define <2 x i1> @test13_vector3(i64 %X, <2 x %S*> %P) nounwind {
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; CHECK-LABEL: @test13_vector3(
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; CHECK-NEXT: [[DOTSPLATINSERT:%.*]] = insertelement <2 x i64> undef, i64 [[X:%.*]], i32 0
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; CHECK-NEXT: [[TMP1:%.*]] = shl <2 x i64> [[DOTSPLATINSERT]], <i64 2, i64 undef>
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; CHECK-NEXT: [[TMP2:%.*]] = icmp eq <2 x i64> [[TMP1]], <i64 4, i64 undef>
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; CHECK-NEXT: [[C:%.*]] = shufflevector <2 x i1> [[TMP2]], <2 x i1> undef, <2 x i32> zeroinitializer
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; CHECK-NEXT: ret <2 x i1> [[C]]
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;
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%A = getelementptr inbounds %S, <2 x %S*> %P, <2 x i64> zeroinitializer, <2 x i32> <i32 1, i32 1>, i64 %X
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%B = getelementptr inbounds %S, <2 x %S*> %P, <2 x i64> <i64 0, i64 0>, <2 x i32> <i32 1, i32 1>, i64 1
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%C = icmp eq <2 x i32*> %A, %B
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ret <2 x i1> %C
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}
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define i1 @test13_as1(i16 %X, %S addrspace(1)* %P) {
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; CHECK-LABEL: @test13_as1(
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; CHECK-NEXT: [[C:%.*]] = icmp eq i16 [[X:%.*]], -1
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; CHECK-NEXT: ret i1 [[C]]
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;
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%A = getelementptr inbounds %S, %S addrspace(1)* %P, i16 0, i32 1, i16 %X
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%B = getelementptr inbounds %S, %S addrspace(1)* %P, i16 0, i32 0
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%C = icmp eq i32 addrspace(1)* %A, %B
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ret i1 %C
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}
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define <2 x i1> @test13_vector_as1(<2 x i16> %X, <2 x %S addrspace(1)*> %P) {
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; CHECK-LABEL: @test13_vector_as1(
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; CHECK-NEXT: [[C:%.*]] = icmp eq <2 x i16> [[X:%.*]], <i16 -1, i16 -1>
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; CHECK-NEXT: ret <2 x i1> [[C]]
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;
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%A = getelementptr inbounds %S, <2 x %S addrspace(1)*> %P, <2 x i16> <i16 0, i16 0>, <2 x i32> <i32 1, i32 1>, <2 x i16> %X
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%B = getelementptr inbounds %S, <2 x %S addrspace(1)*> %P, <2 x i16> <i16 0, i16 0>, <2 x i32> <i32 0, i32 0>
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%C = icmp eq <2 x i32 addrspace(1)*> %A, %B
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ret <2 x i1> %C
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}
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define i1 @test13_i32(i32 %X, %S* %P) {
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; CHECK-LABEL: @test13_i32(
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; CHECK-NEXT: [[C:%.*]] = icmp eq i32 [[X:%.*]], -1
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; CHECK-NEXT: ret i1 [[C]]
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;
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%A = getelementptr inbounds %S, %S* %P, i32 0, i32 1, i32 %X
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%B = getelementptr inbounds %S, %S* %P, i32 0, i32 0
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%C = icmp eq i32* %A, %B
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ret i1 %C
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}
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define i1 @test13_i16(i16 %X, %S* %P) {
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; CHECK-LABEL: @test13_i16(
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; CHECK-NEXT: [[C:%.*]] = icmp eq i16 [[X:%.*]], -1
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; CHECK-NEXT: ret i1 [[C]]
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;
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%A = getelementptr inbounds %S, %S* %P, i16 0, i32 1, i16 %X
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%B = getelementptr inbounds %S, %S* %P, i16 0, i32 0
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%C = icmp eq i32* %A, %B
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ret i1 %C
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}
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define i1 @test13_i128(i128 %X, %S* %P) {
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; CHECK-LABEL: @test13_i128(
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; CHECK-NEXT: [[TMP1:%.*]] = trunc i128 [[X:%.*]] to i64
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; CHECK-NEXT: [[C:%.*]] = icmp eq i64 [[TMP1]], -1
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; CHECK-NEXT: ret i1 [[C]]
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;
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%A = getelementptr inbounds %S, %S* %P, i128 0, i32 1, i128 %X
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%B = getelementptr inbounds %S, %S* %P, i128 0, i32 0
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%C = icmp eq i32* %A, %B
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ret i1 %C
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}
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|
|
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@G = external global [3 x i8]
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define i8* @test14(i32 %idx) {
|
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; CHECK-LABEL: @test14(
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|
; CHECK-NEXT: [[ZEXT:%.*]] = zext i32 [[IDX:%.*]] to i64
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; CHECK-NEXT: [[TMP:%.*]] = getelementptr [3 x i8], [3 x i8]* @G, i64 0, i64 [[ZEXT]]
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; CHECK-NEXT: ret i8* [[TMP]]
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|
;
|
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%zext = zext i32 %idx to i64
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%tmp = getelementptr i8, i8* getelementptr ([3 x i8], [3 x i8]* @G, i32 0, i32 0), i64 %zext
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ret i8* %tmp
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|
}
|
|
|
|
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|
; Test folding of constantexpr geps into normal geps.
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@Array = external global [40 x i32]
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|
define i32 *@test15(i64 %X) {
|
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; CHECK-LABEL: @test15(
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|
; CHECK-NEXT: [[A:%.*]] = getelementptr [40 x i32], [40 x i32]* @Array, i64 0, i64 [[X:%.*]]
|
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; CHECK-NEXT: ret i32* [[A]]
|
|
;
|
|
%A = getelementptr i32, i32* getelementptr ([40 x i32], [40 x i32]* @Array, i64 0, i64 0), i64 %X
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ret i32* %A
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|
}
|
|
|
|
|
|
define i32* @test16(i32* %X, i32 %Idx) {
|
|
; CHECK-LABEL: @test16(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = sext i32 [[IDX:%.*]] to i64
|
|
; CHECK-NEXT: [[R:%.*]] = getelementptr i32, i32* [[X:%.*]], i64 [[TMP1]]
|
|
; CHECK-NEXT: ret i32* [[R]]
|
|
;
|
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%R = getelementptr i32, i32* %X, i32 %Idx
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ret i32* %R
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|
}
|
|
|
|
|
|
define i1 @test17(i16* %P, i32 %I, i32 %J) {
|
|
; CHECK-LABEL: @test17(
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|
; CHECK-NEXT: [[C:%.*]] = icmp slt i32 [[I:%.*]], [[J:%.*]]
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; CHECK-NEXT: ret i1 [[C]]
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;
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%X = getelementptr inbounds i16, i16* %P, i32 %I
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%Y = getelementptr inbounds i16, i16* %P, i32 %J
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%C = icmp ult i16* %X, %Y
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ret i1 %C
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|
}
|
|
|
|
define i1 @test18(i16* %P, i32 %I) {
|
|
; CHECK-LABEL: @test18(
|
|
; CHECK-NEXT: [[C:%.*]] = icmp slt i32 [[I:%.*]], 0
|
|
; CHECK-NEXT: ret i1 [[C]]
|
|
;
|
|
%X = getelementptr inbounds i16, i16* %P, i32 %I
|
|
%C = icmp ult i16* %X, %P
|
|
ret i1 %C
|
|
}
|
|
|
|
; Larger than the pointer size for a non-zero address space
|
|
define i1 @test18_as1(i16 addrspace(1)* %P, i32 %I) {
|
|
; CHECK-LABEL: @test18_as1(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = trunc i32 [[I:%.*]] to i16
|
|
; CHECK-NEXT: [[C:%.*]] = icmp slt i16 [[TMP1]], 0
|
|
; CHECK-NEXT: ret i1 [[C]]
|
|
;
|
|
%X = getelementptr inbounds i16, i16 addrspace(1)* %P, i32 %I
|
|
%C = icmp ult i16 addrspace(1)* %X, %P
|
|
ret i1 %C
|
|
}
|
|
|
|
; Smaller than the pointer size for a non-zero address space
|
|
define i1 @test18_as1_i32(i16 addrspace(1)* %P, i32 %I) {
|
|
; CHECK-LABEL: @test18_as1_i32(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = trunc i32 [[I:%.*]] to i16
|
|
; CHECK-NEXT: [[C:%.*]] = icmp slt i16 [[TMP1]], 0
|
|
; CHECK-NEXT: ret i1 [[C]]
|
|
;
|
|
%X = getelementptr inbounds i16, i16 addrspace(1)* %P, i32 %I
|
|
%C = icmp ult i16 addrspace(1)* %X, %P
|
|
ret i1 %C
|
|
}
|
|
|
|
; Smaller than pointer size
|
|
define i1 @test18_i16(i16* %P, i16 %I) {
|
|
; CHECK-LABEL: @test18_i16(
|
|
; CHECK-NEXT: [[C:%.*]] = icmp slt i16 [[I:%.*]], 0
|
|
; CHECK-NEXT: ret i1 [[C]]
|
|
;
|
|
%X = getelementptr inbounds i16, i16* %P, i16 %I
|
|
%C = icmp ult i16* %X, %P
|
|
ret i1 %C
|
|
}
|
|
|
|
; Same as pointer size
|
|
define i1 @test18_i64(i16* %P, i64 %I) {
|
|
; CHECK-LABEL: @test18_i64(
|
|
; CHECK-NEXT: [[C:%.*]] = icmp slt i64 [[I:%.*]], 0
|
|
; CHECK-NEXT: ret i1 [[C]]
|
|
;
|
|
%X = getelementptr inbounds i16, i16* %P, i64 %I
|
|
%C = icmp ult i16* %X, %P
|
|
ret i1 %C
|
|
}
|
|
|
|
; Larger than the pointer size
|
|
define i1 @test18_i128(i16* %P, i128 %I) {
|
|
; CHECK-LABEL: @test18_i128(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = trunc i128 [[I:%.*]] to i64
|
|
; CHECK-NEXT: [[C:%.*]] = icmp slt i64 [[TMP1]], 0
|
|
; CHECK-NEXT: ret i1 [[C]]
|
|
;
|
|
%X = getelementptr inbounds i16, i16* %P, i128 %I
|
|
%C = icmp ult i16* %X, %P
|
|
ret i1 %C
|
|
}
|
|
|
|
define i32 @test19(i32* %P, i32 %A, i32 %B) {
|
|
; CHECK-LABEL: @test19(
|
|
; CHECK-NEXT: [[TMP_10:%.*]] = icmp eq i32 [[A:%.*]], [[B:%.*]]
|
|
; CHECK-NEXT: [[TMP_11:%.*]] = zext i1 [[TMP_10]] to i32
|
|
; CHECK-NEXT: ret i32 [[TMP_11]]
|
|
;
|
|
%tmp.4 = getelementptr inbounds i32, i32* %P, i32 %A
|
|
%tmp.9 = getelementptr inbounds i32, i32* %P, i32 %B
|
|
%tmp.10 = icmp eq i32* %tmp.4, %tmp.9
|
|
%tmp.11 = zext i1 %tmp.10 to i32
|
|
ret i32 %tmp.11
|
|
}
|
|
|
|
define i32 @test20(i32* %P, i32 %A, i32 %B) {
|
|
; CHECK-LABEL: @test20(
|
|
; CHECK-NEXT: [[TMP_6:%.*]] = icmp eq i32 [[A:%.*]], 0
|
|
; CHECK-NEXT: [[TMP_7:%.*]] = zext i1 [[TMP_6]] to i32
|
|
; CHECK-NEXT: ret i32 [[TMP_7]]
|
|
;
|
|
%tmp.4 = getelementptr inbounds i32, i32* %P, i32 %A
|
|
%tmp.6 = icmp eq i32* %tmp.4, %P
|
|
%tmp.7 = zext i1 %tmp.6 to i32
|
|
ret i32 %tmp.7
|
|
}
|
|
|
|
define i32 @test20_as1(i32 addrspace(1)* %P, i32 %A, i32 %B) {
|
|
; CHECK-LABEL: @test20_as1(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = trunc i32 [[A:%.*]] to i16
|
|
; CHECK-NEXT: [[TMP_6:%.*]] = icmp eq i16 [[TMP1]], 0
|
|
; CHECK-NEXT: [[TMP_7:%.*]] = zext i1 [[TMP_6]] to i32
|
|
; CHECK-NEXT: ret i32 [[TMP_7]]
|
|
;
|
|
%tmp.4 = getelementptr inbounds i32, i32 addrspace(1)* %P, i32 %A
|
|
%tmp.6 = icmp eq i32 addrspace(1)* %tmp.4, %P
|
|
%tmp.7 = zext i1 %tmp.6 to i32
|
|
ret i32 %tmp.7
|
|
}
|
|
|
|
|
|
define i32 @test21() {
|
|
; CHECK-LABEL: @test21(
|
|
; CHECK-NEXT: [[PBOB1:%.*]] = alloca [[INTSTRUCT:%.*]], align 8
|
|
; CHECK-NEXT: [[PBOBEL:%.*]] = getelementptr inbounds [[INTSTRUCT]], %intstruct* [[PBOB1]], i64 0, i32 0
|
|
; CHECK-NEXT: [[RVAL:%.*]] = load i32, i32* [[PBOBEL]], align 8
|
|
; CHECK-NEXT: ret i32 [[RVAL]]
|
|
;
|
|
%pbob1 = alloca %intstruct
|
|
%pbob2 = getelementptr %intstruct, %intstruct* %pbob1
|
|
%pbobel = getelementptr %intstruct, %intstruct* %pbob2, i64 0, i32 0
|
|
%rval = load i32, i32* %pbobel
|
|
ret i32 %rval
|
|
}
|
|
|
|
|
|
@A = global i32 1 ; <i32*> [#uses=1]
|
|
@B = global i32 2 ; <i32*> [#uses=1]
|
|
|
|
define i1 @test22() {
|
|
; CHECK-LABEL: @test22(
|
|
; CHECK-NEXT: ret i1 icmp ult (i32* getelementptr inbounds (i32, i32* @A, i64 1), i32* getelementptr (i32, i32* @B, i64 2))
|
|
;
|
|
%C = icmp ult i32* getelementptr (i32, i32* @A, i64 1),
|
|
getelementptr (i32, i32* @B, i64 2)
|
|
ret i1 %C
|
|
}
|
|
|
|
|
|
%X = type { [10 x i32], float }
|
|
|
|
define i1 @test23() {
|
|
; CHECK-LABEL: @test23(
|
|
; CHECK-NEXT: ret i1 false
|
|
;
|
|
%A = getelementptr %X, %X* null, i64 0, i32 0, i64 0 ; <i32*> [#uses=1]
|
|
%B = icmp ne i32* %A, null ; <i1> [#uses=1]
|
|
ret i1 %B
|
|
}
|
|
|
|
define void @test25() {
|
|
; CHECK-LABEL: @test25(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: store i64 undef, i64* null, align 536870912
|
|
; CHECK-NEXT: tail call void @foo25(i32 0, i64 0)
|
|
; CHECK-NEXT: unreachable
|
|
;
|
|
entry:
|
|
%tmp = getelementptr { i64, i64, i64, i64 }, { i64, i64, i64, i64 }* null, i32 0, i32 3 ; <i64*> [#uses=1]
|
|
%tmp.upgrd.1 = load i64, i64* %tmp ; <i64> [#uses=1]
|
|
%tmp8.ui = load i64, i64* null ; <i64> [#uses=1]
|
|
%tmp8 = bitcast i64 %tmp8.ui to i64 ; <i64> [#uses=1]
|
|
%tmp9 = and i64 %tmp8, %tmp.upgrd.1 ; <i64> [#uses=1]
|
|
%sext = trunc i64 %tmp9 to i32 ; <i32> [#uses=1]
|
|
%tmp27.i = sext i32 %sext to i64 ; <i64> [#uses=1]
|
|
tail call void @foo25( i32 0, i64 %tmp27.i )
|
|
unreachable
|
|
}
|
|
|
|
declare void @foo25(i32, i64)
|
|
|
|
|
|
; PR1637
|
|
define i1 @test26(i8* %arr) {
|
|
; CHECK-LABEL: @test26(
|
|
; CHECK-NEXT: ret i1 true
|
|
;
|
|
%X = getelementptr i8, i8* %arr, i32 1
|
|
%Y = getelementptr i8, i8* %arr, i32 1
|
|
%test = icmp uge i8* %X, %Y
|
|
ret i1 %test
|
|
}
|
|
|
|
%struct.__large_struct = type { [100 x i64] }
|
|
%struct.compat_siginfo = type { i32, i32, i32, { [29 x i32] } }
|
|
%struct.siginfo_t = type { i32, i32, i32, { { i32, i32, [0 x i8], %struct.sigval_t, i32 }, [88 x i8] } }
|
|
%struct.sigval_t = type { i8* }
|
|
|
|
define i32 @test27(%struct.compat_siginfo* %to, %struct.siginfo_t* %from) {
|
|
; CHECK-LABEL: @test27(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[FROM_ADDR:%.*]] = alloca %struct.siginfo_t*, align 8
|
|
; CHECK-NEXT: [[TMP344:%.*]] = load %struct.siginfo_t*, %struct.siginfo_t** [[FROM_ADDR]], align 8
|
|
; CHECK-NEXT: [[TMP349:%.*]] = getelementptr [[STRUCT_SIGINFO_T:%.*]], %struct.siginfo_t* [[TMP344]], i64 0, i32 3, i32 0, i32 3, i32 0
|
|
; CHECK-NEXT: [[TMP349350:%.*]] = bitcast i8** [[TMP349]] to i32*
|
|
; CHECK-NEXT: [[TMP351:%.*]] = load i32, i32* [[TMP349350]], align 8
|
|
; CHECK-NEXT: [[TMP360:%.*]] = call i32 asm sideeffect "...", "=r,ir,*m,i,0,~{dirflag},~{fpsr},~{flags}"(i32 [[TMP351]], %struct.__large_struct* null, i32 -14, i32 0) #0
|
|
; CHECK-NEXT: unreachable
|
|
;
|
|
entry:
|
|
%from_addr = alloca %struct.siginfo_t*
|
|
%tmp344 = load %struct.siginfo_t*, %struct.siginfo_t** %from_addr, align 8
|
|
%tmp345 = getelementptr %struct.siginfo_t, %struct.siginfo_t* %tmp344, i32 0, i32 3
|
|
%tmp346 = getelementptr { { i32, i32, [0 x i8], %struct.sigval_t, i32 }, [88 x i8] }, { { i32, i32, [0 x i8], %struct.sigval_t, i32 }, [88 x i8] }* %tmp345, i32 0, i32 0
|
|
%tmp346347 = bitcast { i32, i32, [0 x i8], %struct.sigval_t, i32 }* %tmp346 to { i32, i32, %struct.sigval_t }*
|
|
%tmp348 = getelementptr { i32, i32, %struct.sigval_t }, { i32, i32, %struct.sigval_t }* %tmp346347, i32 0, i32 2
|
|
%tmp349 = getelementptr %struct.sigval_t, %struct.sigval_t* %tmp348, i32 0, i32 0
|
|
%tmp349350 = bitcast i8** %tmp349 to i32*
|
|
%tmp351 = load i32, i32* %tmp349350, align 8
|
|
%tmp360 = call i32 asm sideeffect "...",
|
|
"=r,ir,*m,i,0,~{dirflag},~{fpsr},~{flags}"( i32 %tmp351,
|
|
%struct.__large_struct* null, i32 -14, i32 0 )
|
|
unreachable
|
|
}
|
|
|
|
; PR1978
|
|
%struct.x = type <{ i8 }>
|
|
@.str = internal constant [6 x i8] c"Main!\00"
|
|
@.str1 = internal constant [12 x i8] c"destroy %p\0A\00"
|
|
|
|
define i32 @test28() nounwind {
|
|
; CHECK-LABEL: @test28(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[ORIENTATIONS:%.*]] = alloca [1 x [1 x %struct.x]], align 8
|
|
; CHECK-NEXT: [[TMP3:%.*]] = call i32 @puts(i8* nonnull dereferenceable(1) getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0)) #0
|
|
; CHECK-NEXT: br label [[BB10:%.*]]
|
|
; CHECK: bb10:
|
|
; CHECK-NEXT: [[INDVAR:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INDVAR_NEXT:%.*]], [[BB10]] ]
|
|
; CHECK-NEXT: [[TMP12_REC:%.*]] = xor i32 [[INDVAR]], -1
|
|
; CHECK-NEXT: [[TMP0:%.*]] = sext i32 [[TMP12_REC]] to i64
|
|
; CHECK-NEXT: [[TMP12:%.*]] = getelementptr inbounds [1 x [1 x %struct.x]], [1 x [1 x %struct.x]]* [[ORIENTATIONS]], i64 1, i64 0, i64 [[TMP0]]
|
|
; CHECK-NEXT: [[TMP16:%.*]] = call i32 (i8*, ...) @printf(i8* nonnull dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @.str1, i64 0, i64 0), %struct.x* nonnull [[TMP12]]) #0
|
|
; CHECK-NEXT: [[TMP84:%.*]] = icmp eq i32 [[INDVAR]], 0
|
|
; CHECK-NEXT: [[INDVAR_NEXT]] = add i32 [[INDVAR]], 1
|
|
; CHECK-NEXT: br i1 [[TMP84]], label [[BB17:%.*]], label [[BB10]]
|
|
; CHECK: bb17:
|
|
; CHECK-NEXT: ret i32 0
|
|
;
|
|
entry:
|
|
%orientations = alloca [1 x [1 x %struct.x]]
|
|
%tmp3 = call i32 @puts( i8* getelementptr ([6 x i8], [6 x i8]* @.str, i32 0, i32 0) ) nounwind
|
|
%tmp45 = getelementptr inbounds [1 x [1 x %struct.x]], [1 x [1 x %struct.x]]* %orientations, i32 1, i32 0, i32 0
|
|
%orientations62 = getelementptr [1 x [1 x %struct.x]], [1 x [1 x %struct.x]]* %orientations, i32 0, i32 0, i32 0
|
|
br label %bb10
|
|
|
|
bb10:
|
|
%indvar = phi i32 [ 0, %entry ], [ %indvar.next, %bb10 ]
|
|
%tmp.0.reg2mem.0.rec = mul i32 %indvar, -1
|
|
%tmp12.rec = add i32 %tmp.0.reg2mem.0.rec, -1
|
|
%tmp12 = getelementptr inbounds %struct.x, %struct.x* %tmp45, i32 %tmp12.rec
|
|
%tmp16 = call i32 (i8*, ...) @printf( i8* nonnull dereferenceable(1) getelementptr ([12 x i8], [12 x i8]* @.str1, i32 0, i32 0), %struct.x* %tmp12 ) nounwind
|
|
%tmp84 = icmp eq %struct.x* %tmp12, %orientations62
|
|
%indvar.next = add i32 %indvar, 1
|
|
br i1 %tmp84, label %bb17, label %bb10
|
|
|
|
bb17:
|
|
ret i32 0
|
|
}
|
|
|
|
declare i32 @puts(i8*)
|
|
|
|
declare i32 @printf(i8*, ...)
|
|
|
|
|
|
|
|
|
|
; rdar://6762290
|
|
%T = type <{ i64, i64, i64 }>
|
|
define i32 @test29(i8* %start, i32 %X) nounwind {
|
|
; CHECK-LABEL: @test29(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: store i64 undef, i64* null, align 536870912
|
|
; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr i8, i8* [[START:%.*]], i64 undef
|
|
; CHECK-NEXT: [[TMP0:%.*]] = sext i32 [[X:%.*]] to i64
|
|
; CHECK-NEXT: [[ADD_PTR212:%.*]] = getelementptr i8, i8* [[START]], i64 [[TMP0]]
|
|
; CHECK-NEXT: [[CMP214:%.*]] = icmp ugt i8* [[ADD_PTR212]], [[ADD_PTR]]
|
|
; CHECK-NEXT: br i1 [[CMP214]], label [[IF_THEN216:%.*]], label [[IF_END363:%.*]]
|
|
; CHECK: if.then216:
|
|
; CHECK-NEXT: ret i32 1
|
|
; CHECK: if.end363:
|
|
; CHECK-NEXT: ret i32 0
|
|
;
|
|
entry:
|
|
%tmp3 = load i64, i64* null
|
|
%add.ptr = getelementptr i8, i8* %start, i64 %tmp3
|
|
%tmp158 = load i32, i32* null
|
|
%add.ptr159 = getelementptr %T, %T* null, i32 %tmp158
|
|
%add.ptr209 = getelementptr i8, i8* %start, i64 0
|
|
%add.ptr212 = getelementptr i8, i8* %add.ptr209, i32 %X
|
|
%cmp214 = icmp ugt i8* %add.ptr212, %add.ptr
|
|
br i1 %cmp214, label %if.then216, label %if.end363
|
|
|
|
if.then216:
|
|
ret i32 1
|
|
|
|
if.end363:
|
|
ret i32 0
|
|
}
|
|
|
|
|
|
; PR3694
|
|
define i32 @test30(i32 %m, i32 %n) nounwind {
|
|
; CHECK-LABEL: @test30(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[TMP0:%.*]] = zext i32 [[N:%.*]] to i64
|
|
; CHECK-NEXT: [[TMP1:%.*]] = alloca i32, i64 [[TMP0]], align 4
|
|
; CHECK-NEXT: call void @test30f(i32* nonnull [[TMP1]]) #0
|
|
; CHECK-NEXT: [[TMP2:%.*]] = sext i32 [[M:%.*]] to i64
|
|
; CHECK-NEXT: [[TMP3:%.*]] = getelementptr i32, i32* [[TMP1]], i64 [[TMP2]]
|
|
; CHECK-NEXT: [[TMP4:%.*]] = load i32, i32* [[TMP3]], align 4
|
|
; CHECK-NEXT: ret i32 [[TMP4]]
|
|
;
|
|
entry:
|
|
%0 = alloca i32, i32 %n, align 4
|
|
%1 = bitcast i32* %0 to [0 x i32]*
|
|
call void @test30f(i32* %0) nounwind
|
|
%2 = getelementptr [0 x i32], [0 x i32]* %1, i32 0, i32 %m
|
|
%3 = load i32, i32* %2, align 4
|
|
ret i32 %3
|
|
}
|
|
|
|
declare void @test30f(i32*)
|
|
|
|
|
|
|
|
define i1 @test31(i32* %A) {
|
|
; CHECK-LABEL: @test31(
|
|
; CHECK-NEXT: ret i1 true
|
|
;
|
|
%B = getelementptr i32, i32* %A, i32 1
|
|
%C = getelementptr i32, i32* %A, i64 1
|
|
%V = icmp eq i32* %B, %C
|
|
ret i1 %V
|
|
}
|
|
|
|
|
|
; PR1345
|
|
define i8* @test32(i8* %v) {
|
|
; CHECK-LABEL: @test32(
|
|
; CHECK-NEXT: [[A:%.*]] = alloca [4 x i8*], align 16
|
|
; CHECK-NEXT: [[B:%.*]] = getelementptr inbounds [4 x i8*], [4 x i8*]* [[A]], i64 0, i64 0
|
|
; CHECK-NEXT: store i8* null, i8** [[B]], align 16
|
|
; CHECK-NEXT: [[D:%.*]] = getelementptr inbounds [4 x i8*], [4 x i8*]* [[A]], i64 0, i64 1
|
|
; CHECK-NEXT: store i8* [[V:%.*]], i8** [[D]], align 8
|
|
; CHECK-NEXT: [[F:%.*]] = getelementptr inbounds [4 x i8*], [4 x i8*]* [[A]], i64 0, i64 2
|
|
; CHECK-NEXT: [[G:%.*]] = load i8*, i8** [[F]], align 16
|
|
; CHECK-NEXT: ret i8* [[G]]
|
|
;
|
|
%A = alloca [4 x i8*], align 16
|
|
%B = getelementptr [4 x i8*], [4 x i8*]* %A, i32 0, i32 0
|
|
store i8* null, i8** %B
|
|
%C = bitcast [4 x i8*]* %A to { [16 x i8] }*
|
|
%D = getelementptr { [16 x i8] }, { [16 x i8] }* %C, i32 0, i32 0, i32 8
|
|
%E = bitcast i8* %D to i8**
|
|
store i8* %v, i8** %E
|
|
%F = getelementptr [4 x i8*], [4 x i8*]* %A, i32 0, i32 2
|
|
%G = load i8*, i8** %F
|
|
ret i8* %G
|
|
}
|
|
|
|
; PR3290
|
|
%struct.Key = type { { i32, i32 } }
|
|
%struct.anon = type <{ i8, [3 x i8], i32 }>
|
|
|
|
define i32* @test33(%struct.Key* %A) {
|
|
; CHECK-LABEL: @test33(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr [[STRUCT_KEY:%.*]], %struct.Key* [[A:%.*]], i64 0, i32 0, i32 1
|
|
; CHECK-NEXT: ret i32* [[TMP1]]
|
|
;
|
|
%B = bitcast %struct.Key* %A to %struct.anon*
|
|
%C = getelementptr %struct.anon, %struct.anon* %B, i32 0, i32 2
|
|
ret i32* %C
|
|
}
|
|
|
|
define i32 addrspace(1)* @test33_as1(%struct.Key addrspace(1)* %A) {
|
|
; CHECK-LABEL: @test33_as1(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr [[STRUCT_KEY:%.*]], [[STRUCT_KEY]] addrspace(1)* [[A:%.*]], i16 0, i32 0, i32 1
|
|
; CHECK-NEXT: ret i32 addrspace(1)* [[TMP1]]
|
|
;
|
|
%B = bitcast %struct.Key addrspace(1)* %A to %struct.anon addrspace(1)*
|
|
%C = getelementptr %struct.anon, %struct.anon addrspace(1)* %B, i32 0, i32 2
|
|
ret i32 addrspace(1)* %C
|
|
}
|
|
|
|
define i32 addrspace(1)* @test33_array_as1([10 x i32] addrspace(1)* %A) {
|
|
; CHECK-LABEL: @test33_array_as1(
|
|
; CHECK-NEXT: [[C:%.*]] = getelementptr [10 x i32], [10 x i32] addrspace(1)* [[A:%.*]], i16 0, i16 2
|
|
; CHECK-NEXT: ret i32 addrspace(1)* [[C]]
|
|
;
|
|
%B = bitcast [10 x i32] addrspace(1)* %A to [5 x i32] addrspace(1)*
|
|
%C = getelementptr [5 x i32], [5 x i32] addrspace(1)* %B, i32 0, i32 2
|
|
ret i32 addrspace(1)* %C
|
|
}
|
|
|
|
; Make sure the GEP indices use the right pointer sized integer
|
|
define i32 addrspace(1)* @test33_array_struct_as1([10 x %struct.Key] addrspace(1)* %A) {
|
|
; CHECK-LABEL: @test33_array_struct_as1(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr [10 x %struct.Key], [10 x %struct.Key] addrspace(1)* [[A:%.*]], i16 0, i16 1, i32 0, i32 0
|
|
; CHECK-NEXT: ret i32 addrspace(1)* [[TMP1]]
|
|
;
|
|
%B = bitcast [10 x %struct.Key] addrspace(1)* %A to [20 x i32] addrspace(1)*
|
|
%C = getelementptr [20 x i32], [20 x i32] addrspace(1)* %B, i32 0, i32 2
|
|
ret i32 addrspace(1)* %C
|
|
}
|
|
|
|
define i32 addrspace(1)* @test33_addrspacecast(%struct.Key* %A) {
|
|
; CHECK-LABEL: @test33_addrspacecast(
|
|
; CHECK-NEXT: [[C:%.*]] = getelementptr [[STRUCT_KEY:%.*]], %struct.Key* [[A:%.*]], i64 0, i32 0, i32 1
|
|
; CHECK-NEXT: [[TMP1:%.*]] = addrspacecast i32* [[C]] to i32 addrspace(1)*
|
|
; CHECK-NEXT: ret i32 addrspace(1)* [[TMP1]]
|
|
;
|
|
%B = addrspacecast %struct.Key* %A to %struct.anon addrspace(1)*
|
|
%C = getelementptr %struct.anon, %struct.anon addrspace(1)* %B, i32 0, i32 2
|
|
ret i32 addrspace(1)* %C
|
|
}
|
|
|
|
%T2 = type { i8*, i8 }
|
|
define i8* @test34(i8* %Val, i64 %V) nounwind {
|
|
; CHECK-LABEL: @test34(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[C_CAST:%.*]] = inttoptr i64 [[V:%.*]] to i8*
|
|
; CHECK-NEXT: ret i8* [[C_CAST]]
|
|
;
|
|
entry:
|
|
%A = alloca %T2, align 8
|
|
%mrv_gep = bitcast %T2* %A to i64*
|
|
%B = getelementptr %T2, %T2* %A, i64 0, i32 0
|
|
|
|
store i64 %V, i64* %mrv_gep
|
|
%C = load i8*, i8** %B, align 8
|
|
ret i8* %C
|
|
}
|
|
|
|
%t0 = type { i8*, [19 x i8] }
|
|
%t1 = type { i8*, [0 x i8] }
|
|
|
|
@array = external global [11 x i8]
|
|
|
|
@s = external global %t0
|
|
@"\01LC8" = external constant [17 x i8]
|
|
|
|
; Instcombine should be able to fold this getelementptr.
|
|
|
|
define i32 @test35() nounwind {
|
|
; CHECK-LABEL: @test35(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call i32 (i8*, ...) @printf(i8* nonnull dereferenceable(1) getelementptr inbounds ([17 x i8], [17 x i8]* @"\01LC8", i64 0, i64 0), i8* getelementptr inbounds (%t0, %t0* @s, i64 0, i32 1, i64 0)) #0
|
|
; CHECK-NEXT: ret i32 0
|
|
;
|
|
call i32 (i8*, ...) @printf(i8* getelementptr ([17 x i8], [17 x i8]* @"\01LC8", i32 0, i32 0),
|
|
i8* getelementptr (%t1, %t1* bitcast (%t0* @s to %t1*), i32 0, i32 1, i32 0)) nounwind
|
|
ret i32 0
|
|
}
|
|
|
|
; Don't treat signed offsets as unsigned.
|
|
define i8* @test36() nounwind {
|
|
; CHECK-LABEL: @test36(
|
|
; CHECK-NEXT: ret i8* getelementptr ([11 x i8], [11 x i8]* @array, i64 0, i64 -1)
|
|
;
|
|
ret i8* getelementptr ([11 x i8], [11 x i8]* @array, i32 0, i64 -1)
|
|
}
|
|
|
|
; Instcombine shouldn't assume that gep(A,0,1) != gep(A,1,0).
|
|
@A37 = external constant [1 x i8]
|
|
define i1 @test37() nounwind {
|
|
; CHECK-LABEL: @test37(
|
|
; CHECK-NEXT: ret i1 true
|
|
;
|
|
%t = icmp eq i8* getelementptr ([1 x i8], [1 x i8]* @A37, i64 0, i64 1),
|
|
getelementptr ([1 x i8], [1 x i8]* @A37, i64 1, i64 0)
|
|
ret i1 %t
|
|
}
|
|
|
|
; Test index promotion
|
|
define i32* @test38(i32* %I, i32 %n) {
|
|
; CHECK-LABEL: @test38(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = sext i32 [[N:%.*]] to i64
|
|
; CHECK-NEXT: [[A:%.*]] = getelementptr i32, i32* [[I:%.*]], i64 [[TMP1]]
|
|
; CHECK-NEXT: ret i32* [[A]]
|
|
;
|
|
%A = getelementptr i32, i32* %I, i32 %n
|
|
ret i32* %A
|
|
}
|
|
|
|
; Test that we don't duplicate work when the second gep is a "bitcast".
|
|
%pr10322_t = type { i8* }
|
|
declare void @pr10322_f2(%pr10322_t*)
|
|
declare void @pr10322_f3(i8**)
|
|
define void @pr10322_f1(%pr10322_t* %foo) {
|
|
; CHECK-LABEL: @pr10322_f1(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[ARRAYIDX8:%.*]] = getelementptr inbounds [[PR10322_T:%.*]], %pr10322_t* [[FOO:%.*]], i64 2
|
|
; CHECK-NEXT: call void @pr10322_f2(%pr10322_t* nonnull [[ARRAYIDX8]]) #0
|
|
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds [[PR10322_T]], %pr10322_t* [[ARRAYIDX8]], i64 0, i32 0
|
|
; CHECK-NEXT: call void @pr10322_f3(i8** nonnull [[TMP2]]) #0
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
entry:
|
|
%arrayidx8 = getelementptr inbounds %pr10322_t, %pr10322_t* %foo, i64 2
|
|
call void @pr10322_f2(%pr10322_t* %arrayidx8) nounwind
|
|
%tmp2 = getelementptr inbounds %pr10322_t, %pr10322_t* %arrayidx8, i64 0, i32 0
|
|
call void @pr10322_f3(i8** %tmp2) nounwind
|
|
ret void
|
|
|
|
}
|
|
|
|
; Test that we combine the last two geps in this sequence, before we
|
|
; would wait for gep1 and gep2 to be combined and never combine 2 and 3.
|
|
%three_gep_t = type {i32}
|
|
%three_gep_t2 = type {%three_gep_t}
|
|
|
|
define void @three_gep_f(%three_gep_t2* %x) {
|
|
; CHECK-LABEL: @three_gep_f(
|
|
; CHECK-NEXT: [[GEP1:%.*]] = getelementptr [[THREE_GEP_T2:%.*]], %three_gep_t2* [[X:%.*]], i64 2
|
|
; CHECK-NEXT: call void @three_gep_h(%three_gep_t2* [[GEP1]])
|
|
; CHECK-NEXT: [[GEP3:%.*]] = getelementptr [[THREE_GEP_T2]], %three_gep_t2* [[GEP1]], i64 0, i32 0, i32 0
|
|
; CHECK-NEXT: call void @three_gep_g(i32* [[GEP3]])
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
%gep1 = getelementptr %three_gep_t2, %three_gep_t2* %x, i64 2
|
|
call void @three_gep_h(%three_gep_t2* %gep1)
|
|
%gep2 = getelementptr %three_gep_t2, %three_gep_t2* %gep1, i64 0, i32 0
|
|
%gep3 = getelementptr %three_gep_t, %three_gep_t* %gep2, i64 0, i32 0
|
|
call void @three_gep_g(i32* %gep3)
|
|
|
|
ret void
|
|
}
|
|
|
|
declare void @three_gep_g(i32*)
|
|
declare void @three_gep_h(%three_gep_t2*)
|
|
|
|
%struct.ham = type { i32, %struct.zot*, %struct.zot*, %struct.zot* }
|
|
%struct.zot = type { i64, i8 }
|
|
|
|
define void @test39(%struct.ham* %arg, i8 %arg1) nounwind {
|
|
; CHECK-LABEL: @test39(
|
|
; CHECK-NEXT: [[TMP:%.*]] = getelementptr inbounds [[STRUCT_HAM:%.*]], %struct.ham* [[ARG:%.*]], i64 0, i32 2
|
|
; CHECK-NEXT: [[TMP1:%.*]] = bitcast %struct.zot** [[TMP]] to i8**
|
|
; CHECK-NEXT: [[TMP21:%.*]] = load i8*, i8** [[TMP1]], align 8
|
|
; CHECK-NEXT: [[TMP4:%.*]] = getelementptr inbounds i8, i8* [[TMP21]], i64 -8
|
|
; CHECK-NEXT: store i8 [[ARG1:%.*]], i8* [[TMP4]], align 8
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
%tmp = getelementptr inbounds %struct.ham, %struct.ham* %arg, i64 0, i32 2
|
|
%tmp2 = load %struct.zot*, %struct.zot** %tmp, align 8
|
|
%tmp3 = bitcast %struct.zot* %tmp2 to i8*
|
|
%tmp4 = getelementptr inbounds i8, i8* %tmp3, i64 -8
|
|
store i8 %arg1, i8* %tmp4, align 8
|
|
ret void
|
|
|
|
}
|
|
|
|
define i1 @pr16483([1 x i8]* %a, [1 x i8]* %b) {
|
|
; CHECK-LABEL: @pr16483(
|
|
; CHECK-NEXT: [[CMP:%.*]] = icmp ult [1 x i8]* [[A:%.*]], [[B:%.*]]
|
|
; CHECK-NEXT: ret i1 [[CMP]]
|
|
;
|
|
%c = getelementptr [1 x i8], [1 x i8]* %a, i32 0, i32 0
|
|
%d = getelementptr [1 x i8], [1 x i8]* %b, i32 0, i32 0
|
|
%cmp = icmp ult i8* %c, %d
|
|
ret i1 %cmp
|
|
|
|
}
|
|
|
|
define i8 @test_gep_bitcast_as1(i32 addrspace(1)* %arr, i16 %N) {
|
|
; CHECK-LABEL: @test_gep_bitcast_as1(
|
|
; CHECK-NEXT: [[T1:%.*]] = getelementptr i32, i32 addrspace(1)* [[ARR:%.*]], i16 [[N:%.*]]
|
|
; CHECK-NEXT: [[T:%.*]] = bitcast i32 addrspace(1)* [[T1]] to i8 addrspace(1)*
|
|
; CHECK-NEXT: [[X:%.*]] = load i8, i8 addrspace(1)* [[T]], align 1
|
|
; CHECK-NEXT: ret i8 [[X]]
|
|
;
|
|
%cast = bitcast i32 addrspace(1)* %arr to i8 addrspace(1)*
|
|
%V = mul i16 %N, 4
|
|
%t = getelementptr i8, i8 addrspace(1)* %cast, i16 %V
|
|
%x = load i8, i8 addrspace(1)* %t
|
|
ret i8 %x
|
|
}
|
|
|
|
; The element size of the array matches the element size of the pointer
|
|
define i64 @test_gep_bitcast_array_same_size_element([100 x double]* %arr, i64 %N) {
|
|
; CHECK-LABEL: @test_gep_bitcast_array_same_size_element(
|
|
; CHECK-NEXT: [[V:%.*]] = shl i64 [[N:%.*]], 3
|
|
; CHECK-NEXT: [[T1:%.*]] = getelementptr [100 x double], [100 x double]* [[ARR:%.*]], i64 0, i64 [[V]]
|
|
; CHECK-NEXT: [[T:%.*]] = bitcast double* [[T1]] to i64*
|
|
; CHECK-NEXT: [[X:%.*]] = load i64, i64* [[T]], align 4
|
|
; CHECK-NEXT: ret i64 [[X]]
|
|
;
|
|
%cast = bitcast [100 x double]* %arr to i64*
|
|
%V = mul i64 %N, 8
|
|
%t = getelementptr i64, i64* %cast, i64 %V
|
|
%x = load i64, i64* %t
|
|
ret i64 %x
|
|
}
|
|
|
|
; gep should be done in the original address space.
|
|
define i64 @test_gep_bitcast_array_same_size_element_addrspacecast([100 x double]* %arr, i64 %N) {
|
|
; CHECK-LABEL: @test_gep_bitcast_array_same_size_element_addrspacecast(
|
|
; CHECK-NEXT: [[V:%.*]] = shl i64 [[N:%.*]], 3
|
|
; CHECK-NEXT: [[T1:%.*]] = getelementptr [100 x double], [100 x double]* [[ARR:%.*]], i64 0, i64 [[V]]
|
|
; CHECK-NEXT: [[TMP1:%.*]] = bitcast double* [[T1]] to i64*
|
|
; CHECK-NEXT: [[T:%.*]] = addrspacecast i64* [[TMP1]] to i64 addrspace(3)*
|
|
; CHECK-NEXT: [[X:%.*]] = load i64, i64 addrspace(3)* [[T]], align 4
|
|
; CHECK-NEXT: ret i64 [[X]]
|
|
;
|
|
%cast = addrspacecast [100 x double]* %arr to i64 addrspace(3)*
|
|
%V = mul i64 %N, 8
|
|
%t = getelementptr i64, i64 addrspace(3)* %cast, i64 %V
|
|
%x = load i64, i64 addrspace(3)* %t
|
|
ret i64 %x
|
|
}
|
|
|
|
; The element size of the array is different the element size of the pointer
|
|
define i8 @test_gep_bitcast_array_different_size_element([100 x double]* %arr, i64 %N) {
|
|
; CHECK-LABEL: @test_gep_bitcast_array_different_size_element(
|
|
; CHECK-NEXT: [[T1:%.*]] = getelementptr [100 x double], [100 x double]* [[ARR:%.*]], i64 0, i64 [[N:%.*]]
|
|
; CHECK-NEXT: [[T:%.*]] = bitcast double* [[T1]] to i8*
|
|
; CHECK-NEXT: [[X:%.*]] = load i8, i8* [[T]], align 1
|
|
; CHECK-NEXT: ret i8 [[X]]
|
|
;
|
|
%cast = bitcast [100 x double]* %arr to i8*
|
|
%V = mul i64 %N, 8
|
|
%t = getelementptr i8, i8* %cast, i64 %V
|
|
%x = load i8, i8* %t
|
|
ret i8 %x
|
|
}
|
|
|
|
define i64 @test_gep_bitcast_array_same_size_element_as1([100 x double] addrspace(1)* %arr, i16 %N) {
|
|
; CHECK-LABEL: @test_gep_bitcast_array_same_size_element_as1(
|
|
; CHECK-NEXT: [[V:%.*]] = shl i16 [[N:%.*]], 3
|
|
; CHECK-NEXT: [[T1:%.*]] = getelementptr [100 x double], [100 x double] addrspace(1)* [[ARR:%.*]], i16 0, i16 [[V]]
|
|
; CHECK-NEXT: [[T:%.*]] = bitcast double addrspace(1)* [[T1]] to i64 addrspace(1)*
|
|
; CHECK-NEXT: [[X:%.*]] = load i64, i64 addrspace(1)* [[T]], align 4
|
|
; CHECK-NEXT: ret i64 [[X]]
|
|
;
|
|
%cast = bitcast [100 x double] addrspace(1)* %arr to i64 addrspace(1)*
|
|
%V = mul i16 %N, 8
|
|
%t = getelementptr i64, i64 addrspace(1)* %cast, i16 %V
|
|
%x = load i64, i64 addrspace(1)* %t
|
|
ret i64 %x
|
|
}
|
|
|
|
define i8 @test_gep_bitcast_array_different_size_element_as1([100 x double] addrspace(1)* %arr, i16 %N) {
|
|
; CHECK-LABEL: @test_gep_bitcast_array_different_size_element_as1(
|
|
; CHECK-NEXT: [[T1:%.*]] = getelementptr [100 x double], [100 x double] addrspace(1)* [[ARR:%.*]], i16 0, i16 [[N:%.*]]
|
|
; CHECK-NEXT: [[T:%.*]] = bitcast double addrspace(1)* [[T1]] to i8 addrspace(1)*
|
|
; CHECK-NEXT: [[X:%.*]] = load i8, i8 addrspace(1)* [[T]], align 1
|
|
; CHECK-NEXT: ret i8 [[X]]
|
|
;
|
|
%cast = bitcast [100 x double] addrspace(1)* %arr to i8 addrspace(1)*
|
|
%V = mul i16 %N, 8
|
|
%t = getelementptr i8, i8 addrspace(1)* %cast, i16 %V
|
|
%x = load i8, i8 addrspace(1)* %t
|
|
ret i8 %x
|
|
}
|
|
|
|
define i64 @test40() {
|
|
; CHECK-LABEL: @test40(
|
|
; CHECK-NEXT: ret i64 8
|
|
;
|
|
%array = alloca [3 x i32], align 4
|
|
%gep = getelementptr inbounds [3 x i32], [3 x i32]* %array, i64 0, i64 2
|
|
%gepi8 = bitcast i32* %gep to i8*
|
|
%p = ptrtoint [3 x i32]* %array to i64
|
|
%np = sub i64 0, %p
|
|
%gep2 = getelementptr i8, i8* %gepi8, i64 %np
|
|
%ret = ptrtoint i8* %gep2 to i64
|
|
ret i64 %ret
|
|
|
|
}
|
|
|
|
define i16 @test41([3 x i32] addrspace(1)* %array) {
|
|
; CHECK-LABEL: @test41(
|
|
; CHECK-NEXT: ret i16 8
|
|
;
|
|
%gep = getelementptr inbounds [3 x i32], [3 x i32] addrspace(1)* %array, i16 0, i16 2
|
|
%gepi8 = bitcast i32 addrspace(1)* %gep to i8 addrspace(1)*
|
|
%p = ptrtoint [3 x i32] addrspace(1)* %array to i16
|
|
%np = sub i16 0, %p
|
|
%gep2 = getelementptr i8, i8 addrspace(1)* %gepi8, i16 %np
|
|
%ret = ptrtoint i8 addrspace(1)* %gep2 to i16
|
|
ret i16 %ret
|
|
|
|
}
|
|
|
|
define i8* @test42(i8* %c1, i8* %c2) {
|
|
; CHECK-LABEL: @test42(
|
|
; CHECK-NEXT: [[PTRTOINT:%.*]] = ptrtoint i8* [[C1:%.*]] to i64
|
|
; CHECK-NEXT: [[TMP1:%.*]] = ptrtoint i8* [[C2:%.*]] to i64
|
|
; CHECK-NEXT: [[TMP2:%.*]] = sub i64 [[TMP1]], [[PTRTOINT]]
|
|
; CHECK-NEXT: [[GEP:%.*]] = inttoptr i64 [[TMP2]] to i8*
|
|
; CHECK-NEXT: ret i8* [[GEP]]
|
|
;
|
|
%ptrtoint = ptrtoint i8* %c1 to i64
|
|
%sub = sub i64 0, %ptrtoint
|
|
%gep = getelementptr inbounds i8, i8* %c2, i64 %sub
|
|
ret i8* %gep
|
|
|
|
}
|
|
|
|
define i16* @test43(i16* %c1, i16* %c2) {
|
|
; CHECK-LABEL: @test43(
|
|
; CHECK-NEXT: [[PTRTOINT:%.*]] = ptrtoint i16* [[C1:%.*]] to i64
|
|
; CHECK-NEXT: [[TMP1:%.*]] = ptrtoint i16* [[C2:%.*]] to i64
|
|
; CHECK-NEXT: [[TMP2:%.*]] = sub i64 [[TMP1]], [[PTRTOINT]]
|
|
; CHECK-NEXT: [[GEP:%.*]] = inttoptr i64 [[TMP2]] to i16*
|
|
; CHECK-NEXT: ret i16* [[GEP]]
|
|
;
|
|
%ptrtoint = ptrtoint i16* %c1 to i64
|
|
%sub = sub i64 0, %ptrtoint
|
|
%shr = ashr i64 %sub, 1
|
|
%gep = getelementptr inbounds i16, i16* %c2, i64 %shr
|
|
ret i16* %gep
|
|
|
|
}
|
|
|
|
define %struct.C* @test44(%struct.C* %c1, %struct.C* %c2) {
|
|
; CHECK-LABEL: @test44(
|
|
; CHECK-NEXT: [[PTRTOINT:%.*]] = ptrtoint %struct.C* [[C1:%.*]] to i64
|
|
; CHECK-NEXT: [[TMP1:%.*]] = ptrtoint %struct.C* [[C2:%.*]] to i64
|
|
; CHECK-NEXT: [[TMP2:%.*]] = sub i64 [[TMP1]], [[PTRTOINT]]
|
|
; CHECK-NEXT: [[GEP:%.*]] = inttoptr i64 [[TMP2]] to %struct.C*
|
|
; CHECK-NEXT: ret %struct.C* [[GEP]]
|
|
;
|
|
%ptrtoint = ptrtoint %struct.C* %c1 to i64
|
|
%sub = sub i64 0, %ptrtoint
|
|
%shr = sdiv i64 %sub, 7
|
|
%gep = getelementptr inbounds %struct.C, %struct.C* %c2, i64 %shr
|
|
ret %struct.C* %gep
|
|
|
|
}
|
|
|
|
define %struct.C* @test45(%struct.C* %c1, %struct.C** %c2) {
|
|
; CHECK-LABEL: @test45(
|
|
; CHECK-NEXT: [[GEP:%.*]] = bitcast %struct.C** [[C2:%.*]] to %struct.C*
|
|
; CHECK-NEXT: ret %struct.C* [[GEP]]
|
|
;
|
|
%ptrtoint1 = ptrtoint %struct.C* %c1 to i64
|
|
%ptrtoint2 = ptrtoint %struct.C** %c2 to i64
|
|
%sub = sub i64 %ptrtoint2, %ptrtoint1 ; C2 - C1
|
|
%shr = sdiv i64 %sub, 7
|
|
%gep = getelementptr inbounds %struct.C, %struct.C* %c1, i64 %shr ; C1 + (C2 - C1)
|
|
ret %struct.C* %gep
|
|
|
|
}
|
|
|
|
define %struct.C* @test46(%struct.C* %c1, %struct.C* %c2, i64 %N) {
|
|
; CHECK-LABEL: @test46(
|
|
; CHECK-NEXT: [[PTRTOINT:%.*]] = ptrtoint %struct.C* [[C1:%.*]] to i64
|
|
; CHECK-NEXT: [[SUB:%.*]] = sub i64 0, [[PTRTOINT]]
|
|
; CHECK-NEXT: [[SDIV:%.*]] = sdiv i64 [[SUB]], [[N:%.*]]
|
|
; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds [[STRUCT_C:%.*]], %struct.C* [[C2:%.*]], i64 [[SDIV]]
|
|
; CHECK-NEXT: ret %struct.C* [[GEP]]
|
|
;
|
|
%ptrtoint = ptrtoint %struct.C* %c1 to i64
|
|
%sub = sub i64 0, %ptrtoint
|
|
%sdiv = sdiv i64 %sub, %N
|
|
%gep = getelementptr inbounds %struct.C, %struct.C* %c2, i64 %sdiv
|
|
ret %struct.C* %gep
|
|
|
|
}
|
|
|
|
define i32* @test47(i32* %I, i64 %C, i64 %D) {
|
|
; CHECK-LABEL: @test47(
|
|
; CHECK-NEXT: [[B:%.*]] = getelementptr i32, i32* [[I:%.*]], i64 [[D:%.*]]
|
|
; CHECK-NEXT: ret i32* [[B]]
|
|
;
|
|
%sub = sub i64 %D, %C
|
|
%A = getelementptr i32, i32* %I, i64 %C
|
|
%B = getelementptr i32, i32* %A, i64 %sub
|
|
ret i32* %B
|
|
}
|
|
|
|
define i32* @test48(i32* %I, i64 %C, i64 %D) {
|
|
; CHECK-LABEL: @test48(
|
|
; CHECK-NEXT: [[B:%.*]] = getelementptr i32, i32* [[I:%.*]], i64 [[D:%.*]]
|
|
; CHECK-NEXT: ret i32* [[B]]
|
|
;
|
|
%sub = sub i64 %D, %C
|
|
%A = getelementptr i32, i32* %I, i64 %sub
|
|
%B = getelementptr i32, i32* %A, i64 %C
|
|
ret i32* %B
|
|
}
|
|
|
|
define i32* @test49(i32* %I, i64 %C) {
|
|
; CHECK-LABEL: @test49(
|
|
; CHECK-NEXT: [[B:%.*]] = getelementptr i32, i32* [[I:%.*]], i64 -1
|
|
; CHECK-NEXT: ret i32* [[B]]
|
|
;
|
|
%notC = xor i64 -1, %C
|
|
%A = getelementptr i32, i32* %I, i64 %C
|
|
%B = getelementptr i32, i32* %A, i64 %notC
|
|
ret i32* %B
|
|
}
|
|
|
|
define i32 addrspace(1)* @ascast_0_gep(i32* %p) nounwind {
|
|
; CHECK-LABEL: @ascast_0_gep(
|
|
; CHECK-NEXT: [[X:%.*]] = addrspacecast i32* [[P:%.*]] to i32 addrspace(1)*
|
|
; CHECK-NEXT: ret i32 addrspace(1)* [[X]]
|
|
;
|
|
%gep = getelementptr i32, i32* %p, i32 0
|
|
%x = addrspacecast i32* %gep to i32 addrspace(1)*
|
|
ret i32 addrspace(1)* %x
|
|
}
|
|
|
|
; Do not merge the GEP and the addrspacecast, because it would undo the
|
|
; addrspacecast canonicalization.
|
|
define i32 addrspace(1)* @ascast_0_0_gep([128 x i32]* %p) nounwind {
|
|
; CHECK-LABEL: @ascast_0_0_gep(
|
|
; CHECK-NEXT: [[GEP:%.*]] = getelementptr [128 x i32], [128 x i32]* [[P:%.*]], i64 0, i64 0
|
|
; CHECK-NEXT: [[X:%.*]] = addrspacecast i32* [[GEP]] to i32 addrspace(1)*
|
|
; CHECK-NEXT: ret i32 addrspace(1)* [[X]]
|
|
;
|
|
%gep = getelementptr [128 x i32], [128 x i32]* %p, i32 0, i32 0
|
|
%x = addrspacecast i32* %gep to i32 addrspace(1)*
|
|
ret i32 addrspace(1)* %x
|
|
}
|
|
|
|
define <2 x i32*> @PR32414(i32** %ptr) {
|
|
; CHECK-LABEL: @PR32414(
|
|
; CHECK-NEXT: [[TMP0:%.*]] = bitcast i32** [[PTR:%.*]] to i32*
|
|
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds i32, i32* [[TMP0]], <2 x i64> <i64 0, i64 1>
|
|
; CHECK-NEXT: ret <2 x i32*> [[TMP1]]
|
|
;
|
|
%tmp0 = bitcast i32** %ptr to i32*
|
|
%tmp1 = getelementptr inbounds i32, i32* %tmp0, <2 x i64> <i64 0, i64 1>
|
|
ret <2 x i32*> %tmp1
|
|
}
|
|
|
|
define i32* @test_bitcast_nzgep([1 x i32]* %base, i64 %idx) {
|
|
; CHECK-LABEL: @test_bitcast_nzgep(
|
|
; CHECK-NEXT: [[PTR:%.*]] = getelementptr inbounds [1 x i32], [1 x i32]* [[BASE:%.*]], i64 0, i64 [[IDX:%.*]]
|
|
; CHECK-NEXT: ret i32* [[PTR]]
|
|
;
|
|
%base2 = bitcast [1 x i32]* %base to i32*
|
|
%ptr = getelementptr inbounds i32, i32* %base2, i64 %idx
|
|
ret i32* %ptr
|
|
}
|
|
|
|
define i32* @test_zgep_nzgep([1 x i32]* %base, i64 %idx) {
|
|
; CHECK-LABEL: @test_zgep_nzgep(
|
|
; CHECK-NEXT: [[PTR:%.*]] = getelementptr inbounds [1 x i32], [1 x i32]* [[BASE:%.*]], i64 0, i64 [[IDX:%.*]]
|
|
; CHECK-NEXT: ret i32* [[PTR]]
|
|
;
|
|
%base2 = getelementptr [1 x i32], [1 x i32]* %base, i64 0, i64 0
|
|
%ptr = getelementptr inbounds i32, i32* %base2, i64 %idx
|
|
ret i32* %ptr
|
|
}
|
|
|
|
define i32* @test_nzgep_zgep([1 x i32]* %base, i64 %idx) {
|
|
; CHECK-LABEL: @test_nzgep_zgep(
|
|
; CHECK-NEXT: [[PTR:%.*]] = getelementptr inbounds [1 x i32], [1 x i32]* [[BASE:%.*]], i64 [[IDX:%.*]], i64 0
|
|
; CHECK-NEXT: ret i32* [[PTR]]
|
|
;
|
|
%base2 = getelementptr inbounds [1 x i32], [1 x i32]* %base, i64 %idx
|
|
%ptr = getelementptr [1 x i32], [1 x i32]* %base2, i64 0, i64 0
|
|
ret i32* %ptr
|
|
}
|
|
|
|
define i32* @test_gep_inbounds_of_gep(i32* %base) {
|
|
; CHECK-LABEL: @test_gep_inbounds_of_gep(
|
|
; CHECK-NEXT: [[PTR2:%.*]] = getelementptr i32, i32* [[BASE:%.*]], i64 8
|
|
; CHECK-NEXT: ret i32* [[PTR2]]
|
|
;
|
|
%ptr1 = getelementptr i32, i32* %base, i64 4
|
|
%ptr2 = getelementptr inbounds i32, i32* %ptr1, i64 4
|
|
ret i32* %ptr2
|
|
}
|