[X86] combine-bextr.ll - replace X32 checks with X86. NFC.

We try to use X32 for gnux32 triples only.

Add nounwind to remove cfi noise as well.

llvm/test/CodeGen/X86/combine-bextr.ll

@@ -1,10 +1,10 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
-; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+sse2,+bmi | FileCheck %s --check-prefixes=CHECK,X32
+; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+sse2,+bmi | FileCheck %s --check-prefixes=CHECK,X86
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse2,+bmi | FileCheck %s --check-prefixes=CHECK,X64
 
 declare i32 @llvm.x86.bmi.bextr.32(i32, i32)
 
-define i32 @bextr_zero_length(i32 %x, i32 %y) {
+define i32 @bextr_zero_length(i32 %x, i32 %y) nounwind {
 ; CHECK-LABEL: bextr_zero_length:
 ; CHECK:       # %bb.0:
 ; CHECK-NEXT:    xorl %eax, %eax
@@ -14,13 +14,13 @@ define i32 @bextr_zero_length(i32 %x, i32 %y) {
   ret i32 %2
 }
 
-define i32 @bextr_big_shift(i32 %x, i32 %y) {
-; X32-LABEL: bextr_big_shift:
-; X32:       # %bb.0:
-; X32-NEXT:    movl $255, %eax
-; X32-NEXT:    orl {{[0-9]+}}(%esp), %eax
-; X32-NEXT:    bextrl %eax, {{[0-9]+}}(%esp), %eax
-; X32-NEXT:    retl
+define i32 @bextr_big_shift(i32 %x, i32 %y) nounwind {
+; X86-LABEL: bextr_big_shift:
+; X86:       # %bb.0:
+; X86-NEXT:    movl $255, %eax
+; X86-NEXT:    orl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    bextrl %eax, {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    retl
 ;
 ; X64-LABEL: bextr_big_shift:
 ; X64:       # %bb.0:
@@ -32,22 +32,20 @@ define i32 @bextr_big_shift(i32 %x, i32 %y) {
   ret i32 %2
 }
 
-define float @bextr_uitofp(i32 %x, i32 %y) {
-; X32-LABEL: bextr_uitofp:
-; X32:       # %bb.0:
-; X32-NEXT:    pushl %eax
-; X32-NEXT:    .cfi_def_cfa_offset 8
-; X32-NEXT:    movl $3855, %eax # imm = 0xF0F
-; X32-NEXT:    bextrl %eax, {{[0-9]+}}(%esp), %eax
-; X32-NEXT:    movd %eax, %xmm0
-; X32-NEXT:    por {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0
-; X32-NEXT:    subsd {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0
-; X32-NEXT:    cvtsd2ss %xmm0, %xmm0
-; X32-NEXT:    movss %xmm0, (%esp)
-; X32-NEXT:    flds (%esp)
-; X32-NEXT:    popl %eax
-; X32-NEXT:    .cfi_def_cfa_offset 4
-; X32-NEXT:    retl
+define float @bextr_uitofp(i32 %x, i32 %y) nounwind {
+; X86-LABEL: bextr_uitofp:
+; X86:       # %bb.0:
+; X86-NEXT:    pushl %eax
+; X86-NEXT:    movl $3855, %eax # imm = 0xF0F
+; X86-NEXT:    bextrl %eax, {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movd %eax, %xmm0
+; X86-NEXT:    por {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0
+; X86-NEXT:    subsd {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0
+; X86-NEXT:    cvtsd2ss %xmm0, %xmm0
+; X86-NEXT:    movss %xmm0, (%esp)
+; X86-NEXT:    flds (%esp)
+; X86-NEXT:    popl %eax
+; X86-NEXT:    retl
 ;
 ; X64-LABEL: bextr_uitofp:
 ; X64:       # %bb.0: