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| author | Eli Friedman <eli.friedman@gmail.com> | 2013-09-24 22:50:14 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2013-09-24 22:50:14 +0000 |
| commit | 85509802eba15c82ff486f512a0b559699dc6999 (patch) | |
| tree | dde092dacfbbf1fb2f78cbfd5eab7565d616aa16 /test/CodeGen | |
| parent | 0c5e6c673098f91fa9d90a15efaadfc767325897 (diff) | |
| download | external_llvm-85509802eba15c82ff486f512a0b559699dc6999.zip external_llvm-85509802eba15c82ff486f512a0b559699dc6999.tar.gz external_llvm-85509802eba15c82ff486f512a0b559699dc6999.tar.bz2 | |
Add missing check to SETCC optimization.
PR17338.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191337 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen')
| -rw-r--r-- | test/CodeGen/X86/setcc-narrowing.ll | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/test/CodeGen/X86/setcc-narrowing.ll b/test/CodeGen/X86/setcc-narrowing.ll new file mode 100644 index 0000000..25cb2c8 --- /dev/null +++ b/test/CodeGen/X86/setcc-narrowing.ll @@ -0,0 +1,18 @@ +; RUN: llc < %s -mtriple=i686-apple-darwin | FileCheck %s +; PR17338 + +@t1.global = internal global i64 -1, align 8 + +define i32 @t1() nounwind ssp { +entry: +; CHECK-LABEL: t1: +; CHECK: cmpl $0, _t1.global +; CHECK-NEXT: setne %al +; CHECK-NEXT: movzbl %al, %eax +; CHECK-NEXT: ret + %0 = load i64* @t1.global, align 8 + %and = and i64 4294967295, %0 + %cmp = icmp sgt i64 %and, 0 + %conv = zext i1 %cmp to i32 + ret i32 %conv +} |