47 lines
1.4 KiB
LLVM
47 lines
1.4 KiB
LLVM
; This test verifies that global variables (string) are hashed based on their initial contents,
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; allowing them to be merged even if they appear different due to their names.
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; Now they become identical functions that can be merged without creating a parameter.
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; RUN: llc -mtriple=arm64-apple-darwin -enable-global-merge-func=true -global-merging-skip-no-params=false < %s | FileCheck %s
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; CHECK: _f1.Tgm
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; CHECK: _f2.Tgm
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; CHECK-NOT: _f3.Tgm
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; CHECK-NOT: _f4.Tgm
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; The initial contents of `.str` and `.str.1` are identical, but not with those of `.str.2` and `.str.3`.
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@.str = private unnamed_addr constant [6 x i8] c"hello\00", align 1
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@.str.1 = private unnamed_addr constant [6 x i8] c"hello\00", align 1
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@.str.2 = private unnamed_addr constant [6 x i8] c"diff2\00", align 1
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@.str.3 = private unnamed_addr constant [6 x i8] c"diff3\00", align 1
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declare i32 @goo(ptr noundef)
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define i32 @f1() {
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entry:
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%call = tail call i32 @goo(ptr noundef nonnull @.str)
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%add = add nsw i32 %call, 1
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ret i32 %add
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}
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define i32 @f2() {
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entry:
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%call = tail call i32 @goo(ptr noundef nonnull @.str.1)
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%add = add nsw i32 %call, 1
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ret i32 %add
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}
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define i32 @f3() {
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entry:
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%call = tail call noundef i32 @goo(ptr noundef nonnull @.str.2)
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%add = sub nsw i32 %call, 1
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ret i32 %add
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}
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define i32 @f4() {
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entry:
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%call = tail call noundef i32 @goo(ptr noundef nonnull @.str.3)
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%add = sub nsw i32 %call, 1
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ret i32 %add
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}
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