[llvm] r352274 - [X86] Add test case from PR34292

[Simon Pilgrim via llvm-commits]

Author: rksimon
Date: Sat Jan 26 05:56:53 2019
New Revision: 352274

URL: http://llvm.org/viewvc/llvm-project?rev=352274&view=rev
Log:
[X86] Add test case from PR34292

Added:
    llvm/trunk/test/CodeGen/X86/pr34292.ll

Added: llvm/trunk/test/CodeGen/X86/pr34292.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/pr34292.ll?rev=352274&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/X86/pr34292.ll (added)
+++ llvm/trunk/test/CodeGen/X86/pr34292.ll Sat Jan 26 05:56:53 2019
@@ -0,0 +1,57 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefixes=CHECK,X64
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+adx | FileCheck %s --check-prefixes=CHECK,ADX
+
+; PR34292
+ at _ZL1c = external global i8
+define void @sum_unroll(i64* nocapture readonly, i64* nocapture) {
+; CHECK-LABEL: sum_unroll:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    movb {{.*}}(%rip), %al
+; CHECK-NEXT:    movq (%rdi), %rcx
+; CHECK-NEXT:    addb $-1, %al
+; CHECK-NEXT:    adcq %rcx, (%rsi)
+; CHECK-NEXT:    movq 8(%rdi), %rax
+; CHECK-NEXT:    adcq %rax, 8(%rsi)
+; CHECK-NEXT:    movq 16(%rdi), %rax
+; CHECK-NEXT:    adcq %rax, 16(%rsi)
+; CHECK-NEXT:    movq 24(%rdi), %rax
+; CHECK-NEXT:    adcq %rax, 24(%rsi)
+; CHECK-NEXT:    setb {{.*}}(%rip)
+; CHECK-NEXT:    retq
+  %3 = load i8, i8* @_ZL1c, align 1
+  %4 = load i64, i64* %0, align 8
+  %5 = load i64, i64* %1, align 8
+  %6 = tail call { i8, i64 } @llvm.x86.addcarry.64(i8 %3, i64 %4, i64 %5)
+  %7 = extractvalue { i8, i64 } %6, 1
+  store i64 %7, i64* %1, align 8
+  %8 = extractvalue { i8, i64 } %6, 0
+  %9 = getelementptr inbounds i64, i64* %0, i64 1
+  %10 = load i64, i64* %9, align 8
+  %11 = getelementptr inbounds i64, i64* %1, i64 1
+  %12 = load i64, i64* %11, align 8
+  %13 = tail call { i8, i64 } @llvm.x86.addcarry.64(i8 %8, i64 %10, i64 %12)
+  %14 = extractvalue { i8, i64 } %13, 1
+  store i64 %14, i64* %11, align 8
+  %15 = extractvalue { i8, i64 } %13, 0
+  %16 = getelementptr inbounds i64, i64* %0, i64 2
+  %17 = load i64, i64* %16, align 8
+  %18 = getelementptr inbounds i64, i64* %1, i64 2
+  %19 = load i64, i64* %18, align 8
+  %20 = tail call { i8, i64 } @llvm.x86.addcarry.64(i8 %15, i64 %17, i64 %19)
+  %21 = extractvalue { i8, i64 } %20, 1
+  store i64 %21, i64* %18, align 8
+  %22 = extractvalue { i8, i64 } %20, 0
+  %23 = getelementptr inbounds i64, i64* %0, i64 3
+  %24 = load i64, i64* %23, align 8
+  %25 = getelementptr inbounds i64, i64* %1, i64 3
+  %26 = load i64, i64* %25, align 8
+  %27 = tail call { i8, i64 } @llvm.x86.addcarry.64(i8 %22, i64 %24, i64 %26)
+  %28 = extractvalue { i8, i64 } %27, 1
+  store i64 %28, i64* %25, align 8
+  %29 = extractvalue { i8, i64 } %27, 0
+  store i8 %29, i8* @_ZL1c, align 1
+  ret void
+}
+
+declare { i8, i64 } @llvm.x86.addcarry.64(i8, i64, i64)