96a14f388b
As reported on https://reviews.llvm.org/D150375#4367861 and following, this change causes PDT invalidation issues. Revert it and dependent commits. This reverts commit0524534d52. This reverts commitced90d1ff6. This reverts commit9f992cc935. This reverts commit1b1232047e.
74 lines
2.2 KiB
LLVM
74 lines
2.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; Test function specialization wouldn't crash due to constant expression.
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; Note that this test case shows that function specialization pass would
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; transform the function even if no specialization happened.
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; RUN: opt -passes="ipsccp<func-spec>" -force-specialization -S < %s | FileCheck %s
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%struct = type { i8, i16, i32, i64, i64}
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@Global = internal constant %struct {i8 0, i16 1, i32 2, i64 3, i64 4}
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define internal i64 @func2(ptr %x) {
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entry:
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%val = ptrtoint ptr %x to i64
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ret i64 %val
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}
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define internal i64 @func(ptr %x, ptr %binop) {
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; CHECK-LABEL: @func(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: unreachable
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;
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entry:
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%tmp0 = call i64 %binop(ptr %x)
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ret i64 %tmp0
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}
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define internal i64 @zoo(i1 %flag) {
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; CHECK-LABEL: @zoo(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br i1 [[FLAG:%.*]], label [[PLUS:%.*]], label [[MINUS:%.*]]
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; CHECK: plus:
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; CHECK-NEXT: [[TMP0:%.*]] = call i64 @func2.2(ptr getelementptr inbounds ([[STRUCT:%.*]], ptr @Global, i32 0, i32 3))
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; CHECK-NEXT: br label [[MERGE:%.*]]
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; CHECK: minus:
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; CHECK-NEXT: [[TMP1:%.*]] = call i64 @func2.1(ptr getelementptr inbounds ([[STRUCT]], ptr @Global, i32 0, i32 4))
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; CHECK-NEXT: br label [[MERGE]]
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; CHECK: merge:
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; CHECK-NEXT: [[TMP2:%.*]] = phi i64 [ ptrtoint (ptr getelementptr inbounds ([[STRUCT:%.*]], ptr @Global, i32 0, i32 3) to i64), [[PLUS]] ], [ ptrtoint (ptr getelementptr inbounds ([[STRUCT:%.*]], ptr @Global, i32 0, i32 4) to i64), [[MINUS]] ]
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; CHECK-NEXT: ret i64 [[TMP2]]
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;
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entry:
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br i1 %flag, label %plus, label %minus
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plus:
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%arg = getelementptr %struct, ptr @Global, i32 0, i32 3
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%tmp0 = call i64 @func2(ptr %arg)
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br label %merge
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minus:
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%arg2 = getelementptr %struct, ptr @Global, i32 0, i32 4
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%tmp1 = call i64 @func2(ptr %arg2)
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br label %merge
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merge:
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%tmp2 = phi i64 [ %tmp0, %plus ], [ %tmp1, %minus]
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ret i64 %tmp2
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}
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define i64 @main() {
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; CHECK-LABEL: @main(
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; CHECK-NEXT: [[TMP1:%.*]] = call i64 @zoo(i1 false)
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; CHECK-NEXT: [[TMP2:%.*]] = call i64 @zoo(i1 true)
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; CHECK-NEXT: [[TMP3:%.*]] = add i64 [[TMP1]], [[TMP2]]
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; CHECK-NEXT: ret i64 [[TMP3]]
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;
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%1 = call i64 @zoo(i1 0)
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%2 = call i64 @zoo(i1 1)
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%3 = add i64 %1, %2
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ret i64 %3
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}
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