0676acb6fd
Should cover most of the tests for GVN, GVNHoist, GVNSink, GlobalOpt, GlobalSplit, InstCombine, Reassociate, SROA and TailCallElim that had not been updated earlier.
72 lines
1.9 KiB
LLVM
72 lines
1.9 KiB
LLVM
; RUN: opt -passes=gvn-sink -S < %s | FileCheck %s
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%struct = type {i32, i32}
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%struct2 = type { [ 2 x i32], i32 }
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; Struct indices cannot be variant.
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; CHECK-LABEL: @f() {
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; CHECK: getelementptr
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; CHECK: getelementptr
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define void @f() {
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bb:
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br i1 undef, label %bb2, label %bb1
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bb1: ; preds = %bb
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%tmp = getelementptr inbounds %struct, %struct* null, i64 0, i32 1
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br label %bb4
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bb2: ; preds = %bb
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%tmp3 = getelementptr inbounds %struct, %struct* null, i64 0, i32 0
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br label %bb4
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bb4: ; preds = %bb2, %bb1
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%tmp5 = phi i32 [ 1, %bb1 ], [ 0, %bb2 ]
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ret void
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}
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; Struct indices cannot be variant.
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; CHECK-LABEL: @g() {
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; CHECK: getelementptr
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; CHECK: getelementptr
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define void @g() {
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bb:
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br i1 undef, label %bb2, label %bb1
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bb1: ; preds = %bb
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%tmp = getelementptr inbounds %struct2, %struct2* null, i64 0, i32 0, i32 1
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br label %bb4
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bb2: ; preds = %bb
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%tmp3 = getelementptr inbounds %struct2, %struct2* null, i64 0, i32 0, i32 0
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br label %bb4
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bb4: ; preds = %bb2, %bb1
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%tmp5 = phi i32 [ 1, %bb1 ], [ 0, %bb2 ]
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ret void
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}
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; ... but the first parameter to a GEP can.
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; CHECK-LABEL: @h() {
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; CHECK: getelementptr
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; CHECK-NOT: getelementptr
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define void @h() {
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bb:
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br i1 undef, label %bb2, label %bb1
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bb1: ; preds = %bb
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%tmp = getelementptr inbounds %struct, %struct* null, i32 0, i32 0
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br label %bb4
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bb2: ; preds = %bb
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%tmp3 = getelementptr inbounds %struct, %struct* null, i32 1, i32 0
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br label %bb4
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bb4: ; preds = %bb2, %bb1
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%tmp5 = phi i32 [ 0, %bb1 ], [ 1, %bb2 ]
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ret void
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}
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