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| author | Vedant Kumar <vsk@apple.com> | 2019-01-19 02:46:22 +0000 |
|---|---|---|
| committer | Vedant Kumar <vsk@apple.com> | 2019-01-19 02:46:22 +0000 |
| commit | b537b946b82f7e2c52ad16cf3fbff93345ee4993 (patch) | |
| tree | 7e5a7c7b578d85bf1a89453f8b781f19e05ff7c6 /llvm/test/Transforms | |
| parent | b755a2df5123a2b970733c43c9e65326b73d99c7 (diff) | |
| download | bcm5719-llvm-b537b946b82f7e2c52ad16cf3fbff93345ee4993.tar.gz bcm5719-llvm-b537b946b82f7e2c52ad16cf3fbff93345ee4993.zip | |
[MergeFunc] Allow merging identical vararg functions using aliases
Thanks to Nikita Popov for pointing out this missed case.
This is a follow-up to r351411, which disabled function merging for
vararg functions outright due to a miscompile (see llvm.org/PR40345).
Differential Revision: https://reviews.llvm.org/D56865
llvm-svn: 351624
Diffstat (limited to 'llvm/test/Transforms')
| -rw-r--r-- | llvm/test/Transforms/MergeFunc/va_arg.ll | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/llvm/test/Transforms/MergeFunc/va_arg.ll b/llvm/test/Transforms/MergeFunc/va_arg.ll index eb49a7286ff..1a48a6395ed 100644 --- a/llvm/test/Transforms/MergeFunc/va_arg.ll +++ b/llvm/test/Transforms/MergeFunc/va_arg.ll @@ -1,14 +1,18 @@ ; RUN: opt -S -mergefunc < %s | FileCheck %s +; RUN: opt -S -mergefunc -mergefunc-use-aliases < %s | FileCheck %s -check-prefix=ALIAS target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" target triple = "x86_64-unknown-linux-gnu" +; ALIAS: @_Z9simple_vaPKcz = unnamed_addr alias void (i8*, ...), void (i8*, ...)* @_Z10simple_va2PKcz +; ALIAS-NOT: @_Z9simple_vaPKcz + %struct.__va_list_tag = type { i32, i32, i8*, i8* } ; CHECK-LABEL: define {{.*}}@_Z9simple_vaPKcz ; CHECK: call void @llvm.va_start ; CHECK: call void @llvm.va_end -define dso_local void @_Z9simple_vaPKcz(i8* nocapture readnone, ...) local_unnamed_addr { +define dso_local void @_Z9simple_vaPKcz(i8* nocapture readnone, ...) unnamed_addr { %2 = alloca [1 x %struct.__va_list_tag], align 16 %3 = bitcast [1 x %struct.__va_list_tag]* %2 to i8* call void @llvm.va_start(i8* nonnull %3) @@ -54,7 +58,7 @@ declare void @llvm.va_end(i8*) ; CHECK-LABEL: define {{.*}}@_Z10simple_va2PKcz ; CHECK: call void @llvm.va_start ; CHECK: call void @llvm.va_end -define dso_local void @_Z10simple_va2PKcz(i8* nocapture readnone, ...) local_unnamed_addr { +define dso_local void @_Z10simple_va2PKcz(i8* nocapture readnone, ...) unnamed_addr { %2 = alloca [1 x %struct.__va_list_tag], align 16 %3 = bitcast [1 x %struct.__va_list_tag]* %2 to i8* call void @llvm.va_start(i8* nonnull %3) |
