[tests][X86] Merge call-structfp.ll with x32-function_pointer-3.ll

[hvdijk]

Summary

As suggested by @MaskRay in D112860.

[MaskRay]

llvm/test/CodeGen/X86/x32-function_pointer-3.ll

34

add nounwind to remove .cfi_* noise. Then consider using more CHECK-NEXT

Maybe consider regenerating the CHECK patterns with update_llc_test_checks.py

[hvdijk]

llvm/test/CodeGen/X86/x32-function_pointer-3.ll

34

I do not want the two tests that basically test the same thing, in slightly different cases, to test things differently: the CHECK lines here are written to match those of the existing test that was already in this file. I had an auto-generated test earlier and specifically updated it to use this file's style.

llvm/test/CodeGen/X86/call-structfp.ll

-; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
-; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnux32 | FileCheck %s
-declare { i64, void ()* } @f()
-define void @pr52357() {
-; CHECK-LABEL: pr52357:
-; CHECK:       # %bb.0: # %entry
-; CHECK-NEXT:    pushq %rax
-; CHECK-NEXT:    .cfi_def_cfa_offset 16
-; CHECK-NEXT:    callq f@PLT
-; CHECK-NEXT:    movl %edx, %eax
-; CHECK-NEXT:    popq %rcx
-; CHECK-NEXT:    .cfi_def_cfa_offset 8
-; CHECK-NEXT:    jmpq *%rax # TAILCALL
-entry:
-  %0 = tail call { i64, void ()* } @f()
-  %1 = extractvalue { i64, void ()* } %0, 1
-  tail call void %1()
-  ret void
-}

llvm/test/CodeGen/X86/x32-function_pointer-3.ll

 ;      h.f ();
 ;    }
 
 ;    is passed in the 64-bit %rdi register.  The `f' field is in the lower 32
 ;    bits of %rdi register and the `i' field is in the upper 32 bits of %rdi
 ;    register.  We need to zero-extend %edi to %rdi before branching via %rdi.
 
 define void @bar(i64 %h.coerce) nounwind {
+; CHECK-LABEL: bar:
 entry:
   %h.sroa.0.0.extract.trunc = trunc i64 %h.coerce to i32
   %0 = inttoptr i32 %h.sroa.0.0.extract.trunc to void ()*
 ; CHECK: movl %edi, %e[[REG:.*]]
   tail call void %0() nounwind
 ; CHECK: jmpq *%r[[REG]]
   ret void
 }
+
+declare { i64, void ()* } @pr52357.a()
+define void @pr52357.b() {
+; CHECK-LABEL: pr52357.b:
+entry:
+  %0 = tail call { i64, void ()* } @pr52357.a()
+  %1 = extractvalue { i64, void ()* } %0, 1
+  tail call void %1()
+; CHECK: callq pr52357.a@PLT
+; CHECK: movl %edx, %e[[REG:.*]]
+; CHECK: jmpq *%r[[REG]]
+  ret void
+}