Imported Upstream version 5.18.0.179

Former-commit-id: 67aa10e65b237e1c4537630979ee99ebe1374215

external/llvm/test/CodeGen/X86/sibcall-2.ll

@@ -0,0 +1,52 @@
+; RUN: llc < %s -mtriple=i386-apple-darwin   -disable-fp-elim | FileCheck %s -check-prefix=32
+; RUN: llc < %s -mtriple=x86_64-apple-darwin -disable-fp-elim | FileCheck %s -check-prefix=64
+
+; Tail call should not use ebp / rbp after it's popped. Use esp / rsp.
+
+define void @t1(i8* nocapture %value) nounwind {
+entry:
+; 32-LABEL: t1:
+; 32: jmpl *4(%esp)
+
+; 64-LABEL: t1:
+; 64: jmpq *%rdi
+  %0 = bitcast i8* %value to void ()*
+  tail call void %0() nounwind
+  ret void
+}
+
+define void @t2(i32 %a, i8* nocapture %value) nounwind {
+entry:
+; 32-LABEL: t2:
+; 32: jmpl *8(%esp)
+
+; 64-LABEL: t2:
+; 64: jmpq *%rsi
+  %0 = bitcast i8* %value to void ()*
+  tail call void %0() nounwind
+  ret void
+}
+
+define void @t3(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e, i32 %f, i8* nocapture %value) nounwind {
+entry:
+; 32-LABEL: t3:
+; 32: jmpl *28(%esp)
+
+; 64-LABEL: t3:
+; 64: jmpq *8(%rsp)
+  %0 = bitcast i8* %value to void ()*
+  tail call void %0() nounwind
+  ret void
+}
+
+define void @t4(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e, i32 %f, i32 %g, i8* nocapture %value) nounwind {
+entry:
+; 32-LABEL: t4:
+; 32: jmpl *32(%esp)
+
+; 64-LABEL: t4:
+; 64: jmpq *16(%rsp)
+  %0 = bitcast i8* %value to void ()*
+  tail call void %0() nounwind
+  ret void
+}