c7f7ac7591
MergeFunc uses the original function F as Thunk and creates a new function NewF for the original function F. Preserve F's comdat info on NewF instead of the thunk. This fixes a crash when trying to lower comdat on the thunk during codegen.
49 lines
1.4 KiB
LLVM
49 lines
1.4 KiB
LLVM
; RUN: opt -S -passes=mergefunc %s | FileCheck %s
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target triple = "x86_64-unknown-windows-msvc19.42.34436"
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@symbols = linkonce_odr global <{ ptr, ptr }> <{ ptr @f, ptr @g }>
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$g = comdat any
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$f = comdat any
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define linkonce_odr hidden i32 @f(i32 %x, i32 %y) comdat {
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%sum = add i32 %x, %y
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%sum2 = add i32 %x, %sum
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%sum3 = add i32 %x, %sum
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ret i32 %sum3
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}
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define linkonce_odr hidden i32 @g(i32 %x, i32 %y) comdat {
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%sum = add i32 %x, %y
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%sum2 = add i32 %x, %sum
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%sum3 = add i32 %x, %sum
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ret i32 %sum3
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}
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; CHECK: $g = comdat any
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; CHECK: $f = comdat any
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;.
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; CHECK: @symbols = linkonce_odr global <{ ptr, ptr }> <{ ptr @f, ptr @g }>
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;.
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; CHECK-LABEL: define private i32 @0(
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; CHECK-SAME: i32 [[X:%.*]], i32 [[Y:%.*]]) {
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; CHECK-NEXT: [[SUM:%.*]] = add i32 [[X]], [[Y]]
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; CHECK-NEXT: [[SUM2:%.*]] = add i32 [[X]], [[SUM]]
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; CHECK-NEXT: [[SUM3:%.*]] = add i32 [[X]], [[SUM]]
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; CHECK-NEXT: ret i32 [[SUM3]]
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;
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;
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; CHECK-LABEL: define linkonce_odr hidden i32 @g(
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; CHECK-SAME: i32 [[TMP0:%.*]], i32 [[TMP1:%.*]]) comdat {
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; CHECK-NEXT: [[TMP3:%.*]] = tail call i32 @[[GLOB0:[0-9]+]](i32 [[TMP0]], i32 [[TMP1]])
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; CHECK-NEXT: ret i32 [[TMP3]]
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;
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;
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; CHECK-LABEL: define linkonce_odr hidden i32 @f(
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; CHECK-SAME: i32 [[TMP0:%.*]], i32 [[TMP1:%.*]]) comdat {
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; CHECK-NEXT: [[TMP3:%.*]] = tail call i32 @[[GLOB0]](i32 [[TMP0]], i32 [[TMP1]])
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; CHECK-NEXT: ret i32 [[TMP3]]
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;
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