[llvm-commits] Persistent regression failures

[Anton Korobeynikov]

Chris,

> These both pass for me.  Three options: your CFE isn't up-to-date,  
> the test is broken for your target, or the compiler is broken for  
> your target.
These two failed for me also. The resulting llvm IR (for "Struct"):

; ModuleID =
'/home/asl/proj/llvm/src/test/CFrontend/2007-04-11-InlineAsmStruct.c'
target datalayout =
"e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64"
target triple = "i686-pc-linux-gnu"
        %struct.V = type { i16, i16 }

define i32 @bar() {
entry:
        %retval = alloca i32, align 4           ; <i32*> [#uses=2]
        %tmp = alloca i32, align 4              ; <i32*> [#uses=2]
        %bar = alloca %struct.V, align 4                ; <%struct.V*>
[#uses=2]
        "alloca point" = bitcast i32 0 to i32           ; <i32>
[#uses=0]
        call void asm sideeffect "foo $0\0A",
"=*r,~{dirflag},~{fpsr},~{flags}"( %struct.V* %bar )
        %tmp1 = getelementptr %struct.V* %bar, i32 0, i32
0             ; <i16*> [#uses=1]
        %tmp2 = load i16* %tmp1         ; <i16> [#uses=1]
        %tmp23 = sext i16 %tmp2 to i32          ; <i32> [#uses=1]
        store i32 %tmp23, i32* %tmp
        %tmp4 = load i32* %tmp          ; <i32> [#uses=1]
        store i32 %tmp4, i32* %retval
        br label %return

return:         ; preds = %entry
        %retval5 = load i32* %retval            ; <i32> [#uses=1]
        ret i32 %retval5
}

It seems, extra GEP was used to get result.

-- 
With best regards, Anton Korobeynikov.

Faculty of Mathematics & Mechanics, Saint Petersburg State University.