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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s | FileCheck %s
target datalayout = "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128"
target triple = "i386-unknown-linux-gnu"
@b = global i16 0, align 4
define i32 @main() {
; CHECK-LABEL: main:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: xorl %eax, %eax
; CHECK-NEXT: testb %al, %al
; CHECK-NEXT: jne .LBB0_3
; CHECK-NEXT: # %bb.1: # %go
; CHECK-NEXT: movl $-1, %ecx
; CHECK-NEXT: movsbl b, %edx
; CHECK-NEXT: notl %ecx
; CHECK-NEXT: movzwl %dx, %edx
; CHECK-NEXT: cmpl $-1, %edx
; CHECK-NEXT: sbbl %ecx, %eax
; CHECK-NEXT: jge .LBB0_3
; CHECK-NEXT: # %bb.2: # %if.then
; CHECK-NEXT: movl $42, %eax
; CHECK-NEXT: retl
; CHECK-NEXT: .LBB0_3: # %if.else
; CHECK-NEXT: xorl %eax, %eax
; CHECK-NEXT: retl
entry:
%true = icmp eq i32 0, 0
%const = bitcast i64 -4294967296 to i64
br i1 %true, label %go, label %if.else
go:
%b = load i16, i16* @b, align 4
%sext = shl i16 %b, 8
%conv = ashr i16 %sext, 8
%neg4 = xor i64 %const, -1
%conv5 = zext i16 %conv to i64
%cmp = icmp slt i64 %conv5, %neg4
br i1 %cmp, label %if.then, label %if.else
if.then:
ret i32 42
if.else:
ret i32 0
}
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