[llvm] c137b3e - [X86] Introduce test for PR112098 (NFC)

[Antonio Frighetto via llvm-commits]

Author: Antonio Frighetto
Date: 2024-10-16T09:54:08+02:00
New Revision: c137b3ee357b6e7564f6717bcfb56e28044fc583

URL: https://github.com/llvm/llvm-project/commit/c137b3ee357b6e7564f6717bcfb56e28044fc583
DIFF: https://github.com/llvm/llvm-project/commit/c137b3ee357b6e7564f6717bcfb56e28044fc583.diff

LOG: [X86] Introduce test for PR112098 (NFC)

Added: 
    llvm/test/CodeGen/X86/tailcall-caller-nocsr.ll

Modified: 
    

Removed: 
    


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diff  --git a/llvm/test/CodeGen/X86/tailcall-caller-nocsr.ll b/llvm/test/CodeGen/X86/tailcall-caller-nocsr.ll
new file mode 100644
index 00000000000000..5606fbb27032fb
--- /dev/null
+++ b/llvm/test/CodeGen/X86/tailcall-caller-nocsr.ll
@@ -0,0 +1,32 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
+; RUN: llc < %s -mtriple=x86_64-linux-gnu -mattr=-sse,-avx | FileCheck %s
+
+ at .str = private unnamed_addr constant [6 x i8] c"%d %d\00", align 1
+
+define void @caller(i32 %0, i32 %1) #0 {
+; CHECK-LABEL: caller:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    pushq %r11
+; CHECK-NEXT:    pushq %r10
+; CHECK-NEXT:    pushq %r9
+; CHECK-NEXT:    pushq %r8
+; CHECK-NEXT:    pushq %rdx
+; CHECK-NEXT:    pushq %rcx
+; CHECK-NEXT:    pushq %rax
+; CHECK-NEXT:    movl %edi, %esi
+; CHECK-NEXT:    movl $.L.str, %edi
+; CHECK-NEXT:    popq %rax
+; CHECK-NEXT:    popq %rcx
+; CHECK-NEXT:    popq %rdx
+; CHECK-NEXT:    popq %r8
+; CHECK-NEXT:    popq %r9
+; CHECK-NEXT:    popq %r10
+; CHECK-NEXT:    popq %r11
+; CHECK-NEXT:    jmp printf at PLT # TAILCALL
+  %3 = tail call i32 @printf(ptr @.str, i32 %0, i32 %1)
+  ret void
+}
+
+declare i32 @printf(ptr, ...) nounwind
+
+attributes #0 = { mustprogress nounwind "no_caller_saved_registers" }