This should always be signed chars, so use int8_t. This fixes a miscompile when
[llvm/stm8.git] / test / CodeGen / X86 / test-shrink-bug.ll
blob64631ea5fc9b970cb646d1b66b4d08b6cd980d71
1 ; RUN: llc < %s | FileCheck %s
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
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"
11 @g_14 = global i8 -6, align 1                     ; <i8*> [#uses=1]
13 declare i32 @func_16(i8 signext %p_19, i32 %p_20) nounwind
15 define i32 @func_35(i64 %p_38) nounwind ssp {
16 entry:
17   %tmp = load 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