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Diffstat (limited to 'test/CodeGen/X86/2009-04-25-CoalescerBug.ll')
| -rw-r--r-- | test/CodeGen/X86/2009-04-25-CoalescerBug.ll | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/test/CodeGen/X86/2009-04-25-CoalescerBug.ll b/test/CodeGen/X86/2009-04-25-CoalescerBug.ll new file mode 100644 index 0000000..981d327 --- /dev/null +++ b/test/CodeGen/X86/2009-04-25-CoalescerBug.ll @@ -0,0 +1,19 @@ +; RUN: llvm-as < %s | llc -march=x86-64 | grep mov | count 2 +; rdar://6806252 + +define i64 @test(i32* %tmp13) nounwind { +entry: + br label %while.cond + +while.cond: ; preds = %while.cond, %entry + %tmp15 = load i32* %tmp13 ; <i32> [#uses=2] + %bf.lo = lshr i32 %tmp15, 1 ; <i32> [#uses=1] + %bf.lo.cleared = and i32 %bf.lo, 2147483647 ; <i32> [#uses=1] + %conv = zext i32 %bf.lo.cleared to i64 ; <i64> [#uses=1] + %bf.lo.cleared25 = and i32 %tmp15, 1 ; <i32> [#uses=1] + %tobool = icmp ne i32 %bf.lo.cleared25, 0 ; <i1> [#uses=1] + br i1 %tobool, label %while.cond, label %while.end + +while.end: ; preds = %while.cond + ret i64 %conv +} |