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e2e9cee0d7
To be used by D19781. Differential Revision: http://reviews.llvm.org/D19801 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273039 91177308-0d34-0410-b5e6-96231b3b80d8
55 lines
1.2 KiB
LLVM
55 lines
1.2 KiB
LLVM
; Test that strcmp won't be converted to CLST if calls are
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; marked with nobuiltin, eg. for sanitizers.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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declare signext i32 @strcmp(i8 *%src1, i8 *%src2)
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; Check a case where the result is used as an integer.
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define i32 @f1(i8 *%src1, i8 *%src2) {
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; CHECK-LABEL: f1:
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; CHECK-NOT: clst
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; CHECK: brasl %r14, strcmp
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; CHECK: br %r14
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%res = call i32 @strcmp(i8 *%src1, i8 *%src2) nobuiltin
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ret i32 %res
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}
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; Check a case where the result is tested for equality.
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define void @f2(i8 *%src1, i8 *%src2, i32 *%dest) {
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; CHECK-LABEL: f2:
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; CHECK-NOT: clst
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; CHECK: brasl %r14, strcmp
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; CHECK: br %r14
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%res = call i32 @strcmp(i8 *%src1, i8 *%src2) nobuiltin
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%cmp = icmp eq i32 %res, 0
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br i1 %cmp, label %exit, label %store
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store:
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store i32 0, i32 *%dest
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br label %exit
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exit:
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ret void
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}
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; Test a case where the result is used both as an integer and for
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; branching.
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define i32 @f3(i8 *%src1, i8 *%src2, i32 *%dest) {
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; CHECK-LABEL: f3:
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; CHECK-NOT: clst
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; CHECK: brasl %r14, strcmp
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; CHECK: br %r14
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entry:
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%res = call i32 @strcmp(i8 *%src1, i8 *%src2) nobuiltin
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%cmp = icmp slt i32 %res, 0
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br i1 %cmp, label %exit, label %store
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store:
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store i32 0, i32 *%dest
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br label %exit
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exit:
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ret i32 %res
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}
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