diff options
Diffstat (limited to 'llvm/test/CodeGen/X86/2006-01-19-ISelFoldingBug.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/2006-01-19-ISelFoldingBug.ll | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/llvm/test/CodeGen/X86/2006-01-19-ISelFoldingBug.ll b/llvm/test/CodeGen/X86/2006-01-19-ISelFoldingBug.ll index aa141d20cf9..817b281243e 100644 --- a/llvm/test/CodeGen/X86/2006-01-19-ISelFoldingBug.ll +++ b/llvm/test/CodeGen/X86/2006-01-19-ISelFoldingBug.ll @@ -1,16 +1,20 @@ -; RUN: llvm-upgrade < %s | llvm-as | llc -march=x86 | \ +; RUN: llvm-as < %s | llc -march=x86 | \ ; RUN: grep shld | count 1 ; ; Check that the isel does not fold the shld, which already folds a load ; and has two uses, into a store. -%A = external global uint -uint %test5(uint %B, ubyte %C) { - %tmp.1 = load uint *%A; - %tmp.2 = shl uint %tmp.1, ubyte %C - %tmp.3 = sub ubyte 32, %C - %tmp.4 = shr uint %B, ubyte %tmp.3 - %tmp.5 = or uint %tmp.4, %tmp.2 - store uint %tmp.5, uint* %A - ret uint %tmp.5 +@A = external global i32 ; <i32*> [#uses=2] + +define i32 @test5(i32 %B, i8 %C) { + %tmp.1 = load i32* @A ; <i32> [#uses=1] + %shift.upgrd.1 = zext i8 %C to i32 ; <i32> [#uses=1] + %tmp.2 = shl i32 %tmp.1, %shift.upgrd.1 ; <i32> [#uses=1] + %tmp.3 = sub i8 32, %C ; <i8> [#uses=1] + %shift.upgrd.2 = zext i8 %tmp.3 to i32 ; <i32> [#uses=1] + %tmp.4 = lshr i32 %B, %shift.upgrd.2 ; <i32> [#uses=1] + %tmp.5 = or i32 %tmp.4, %tmp.2 ; <i32> [#uses=2] + store i32 %tmp.5, i32* @A + ret i32 %tmp.5 } + |
