1 ; RUN: llc < %s | FileCheck %s 2 3 ; Codegen shouldn't reduce the comparison down to testb $-1, %al 4 ; because that changes the result of the signed test. 5 ; PR5132 6 ; CHECK: testw $255, %ax 7 8 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-f80:128:128" 9 target triple = "i386-apple-darwin10.0" 10 11 @g_14 = global i8 -6, align 1 ; <i8*> [#uses=1] 12 13 declare i32 @func_16(i8 signext %p_19, i32 %p_20) nounwind 14 15 define i32 @func_35(i64 %p_38) nounwind ssp { 16 entry: 17 %tmp = load i8, i8* @g_14 ; <i8> [#uses=2] 18 %conv = zext i8 %tmp to i32 ; <i32> [#uses=1] 19 %cmp = icmp sle i32 1, %conv ; <i1> [#uses=1] 20 %conv2 = zext i1 %cmp to i32 ; <i32> [#uses=1] 21 %call = call i32 @func_16(i8 signext %tmp, i32 %conv2) ssp ; <i32> [#uses=1] 22 ret i32 1 23 } 24
