[llvm] r312335 - [X86] Add test case I forgot to commit with r312285.
Craig Topper via llvm-commits
llvm-commits at lists.llvm.org
Fri Sep 1 09:40:24 PDT 2017
Author: ctopper
Date: Fri Sep 1 09:40:24 2017
New Revision: 312335
URL: http://llvm.org/viewvc/llvm-project?rev=312335&view=rev
Log:
[X86] Add test case I forgot to commit with r312285.
Added:
llvm/trunk/test/CodeGen/X86/pr34381.ll
Added: llvm/trunk/test/CodeGen/X86/pr34381.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/pr34381.ll?rev=312335&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/X86/pr34381.ll (added)
+++ llvm/trunk/test/CodeGen/X86/pr34381.ll Fri Sep 1 09:40:24 2017
@@ -0,0 +1,49 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+;RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mattr=slow-incdec -fast-isel -O0 | FileCheck %s
+
+ at var_21 = external constant i32, align 4
+ at var_29 = external constant i8, align 1
+ at var_390 = external global i32, align 4
+ at var_11 = external constant i8, align 1
+ at var_370 = external global i8, align 1
+
+; Function Attrs: noinline nounwind optnone uwtable
+define void @_Z3foov() {
+; CHECK-LABEL: _Z3foov:
+; CHECK: # BB#0: # %entry
+; CHECK-NEXT: movl {{.*}}(%rip), %eax
+; CHECK-NEXT: movsbl {{.*}}(%rip), %ecx
+; CHECK-NEXT: negl %ecx
+; CHECK-NEXT: subl %ecx, %eax
+; CHECK-NEXT: setb %dl
+; CHECK-NEXT: addb $-1, %dl
+; CHECK-NEXT: sete %sil
+; CHECK-NEXT: movzbl %sil, %ecx
+; CHECK-NEXT: movl %ecx, {{.*}}(%rip)
+; CHECK-NEXT: movb {{.*}}(%rip), %sil
+; CHECK-NEXT: movsbl %sil, %ecx
+; CHECK-NEXT: movw %cx, %di
+; CHECK-NEXT: movb %dil, %sil
+; CHECK-NEXT: movb %sil, var_370
+; CHECK-NEXT: movl %eax, -{{[0-9]+}}(%rsp) # 4-byte Spill
+; CHECK-NEXT: movb %dl, -{{[0-9]+}}(%rsp) # 1-byte Spill
+; CHECK-NEXT: retq
+entry:
+ %0 = load i32, i32* @var_21, align 4
+ %1 = load i8, i8* @var_29, align 1
+ %conv = sext i8 %1 to i32
+ %sub = sub nsw i32 0, %conv
+ %cmp = icmp ult i32 %0, %sub
+ %conv1 = zext i1 %cmp to i32
+ %add = add nsw i32 %conv1, -1
+ %conv2 = trunc i32 %add to i8
+ %tobool = icmp ne i8 %conv2, 0
+ %lnot = xor i1 %tobool, true
+ %conv3 = zext i1 %lnot to i32
+ store i32 %conv3, i32* @var_390, align 4
+ %2 = load i8, i8* @var_11, align 1
+ %conv4 = sext i8 %2 to i16
+ %conv5 = trunc i16 %conv4 to i8
+ store i8 %conv5, i8* @var_370, align 1
+ ret void
+}
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