[llvm] 0721d7c - [X86] Add test for PR54369 (NFC)

[Nikita Popov via llvm-commits]

Author: Nikita Popov
Date: 2022-03-31T16:45:05+02:00
New Revision: 0721d7c4d8988d2ae0222b6e69b3504079dfd9c2

URL: https://github.com/llvm/llvm-project/commit/0721d7c4d8988d2ae0222b6e69b3504079dfd9c2
DIFF: https://github.com/llvm/llvm-project/commit/0721d7c4d8988d2ae0222b6e69b3504079dfd9c2.diff

LOG: [X86] Add test for PR54369 (NFC)

Added: 
    llvm/test/CodeGen/X86/pr54369.ll

Modified: 
    

Removed: 
    


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diff  --git a/llvm/test/CodeGen/X86/pr54369.ll b/llvm/test/CodeGen/X86/pr54369.ll
new file mode 100644
index 0000000000000..818b4f9d87ea3
--- /dev/null
+++ b/llvm/test/CodeGen/X86/pr54369.ll
@@ -0,0 +1,21 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -mtriple=x86_64-- -O0 < %s | FileCheck %s
+
+; FIXME: This is currently miscompiled due to an eflags clobber.
+define i64 @adder(i64 %lhs, i64 %rhs) {
+; CHECK-LABEL: adder:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    addq %rsi, %rdi
+; CHECK-NEXT:    seto %al
+; CHECK-NEXT:    xorl %eax, %eax
+; CHECK-NEXT:    # kill: def $rax killed $eax
+; CHECK-NEXT:    movl $148, %ecx
+; CHECK-NEXT:    cmovoq %rcx, %rax
+; CHECK-NEXT:    retq
+	%res = call { i64, i1 } @llvm.sadd.with.overflow.i64(i64 %lhs, i64 %rhs)
+	%errorbit = extractvalue { i64, i1 } %res, 1
+	%errorval = select i1 %errorbit, i64 148, i64 0
+	ret i64 %errorval
+}
+
+declare { i64, i1 } @llvm.sadd.with.overflow.i64(i64 %a, i64 %b)