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llvm-mirror/test/Transforms/InstCombine/weak-symbols.ll
Eric Christopher a62270de2c Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552
2019-04-17 04:52:47 +00:00

34 lines
1013 B
LLVM

; PR4738 - Test that the library call simplifier doesn't assume anything about
; weak symbols.
;
; RUN: opt < %s -instcombine -S | FileCheck %s
@real_init = weak_odr constant [2 x i8] c"y\00"
@fake_init = weak constant [2 x i8] c"y\00"
@.str = private constant [2 x i8] c"y\00"
define i32 @foo() nounwind {
; CHECK-LABEL: define i32 @foo(
; CHECK: call i32 @strcmp
; CHECK: ret i32 %temp1
entry:
%str1 = getelementptr inbounds [2 x i8], [2 x i8]* @fake_init, i64 0, i64 0
%str2 = getelementptr inbounds [2 x i8], [2 x i8]* @.str, i64 0, i64 0
%temp1 = call i32 @strcmp(i8* %str1, i8* %str2) nounwind readonly
ret i32 %temp1
}
define i32 @bar() nounwind {
; CHECK-LABEL: define i32 @bar(
; CHECK: ret i32 0
entry:
%str1 = getelementptr inbounds [2 x i8], [2 x i8]* @real_init, i64 0, i64 0
%str2 = getelementptr inbounds [2 x i8], [2 x i8]* @.str, i64 0, i64 0
%temp1 = call i32 @strcmp(i8* %str1, i8* %str2) nounwind readonly
ret i32 %temp1
}
declare i32 @strcmp(i8*, i8*) nounwind readonly