CodeGen peephole: fold redundant phys reg copies

[oota-llvm.git] / test / CodeGen / X86 / segmented-stacks-dynamic.ll

diff --git a/test/CodeGen/X86/segmented-stacks-dynamic.ll b/test/CodeGen/X86/segmented-stacks-dynamic.ll
index b82be41b8cbf34bed55b2f3c86f62884b67fe251..e34ba5412f07a8bb63fd8ce5a84230de59de3bb2 100644 (file)
--- a/test/CodeGen/X86/segmented-stacks-dynamic.ll
+++ b/test/CodeGen/X86/segmented-stacks-dynamic.ll
@@ -1,7 +1,9 @@
 ; RUN: llc < %s -mcpu=generic -mtriple=i686-linux -verify-machineinstrs | FileCheck %s -check-prefix=X32
 ; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux -verify-machineinstrs | FileCheck %s -check-prefix=X64
+; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux-gnux32 -verify-machineinstrs | FileCheck %s -check-prefix=X32ABI
 ; RUN: llc < %s -mcpu=generic -mtriple=i686-linux -filetype=obj
 ; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux -filetype=obj
+; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux-gnux32 -filetype=obj
 
 ; Just to prevent the alloca from being optimized away
 declare void @dummy_use(i32*, i32)
@@ -61,6 +63,26 @@ false:
 ; X64-NEXT: callq __morestack_allocate_stack_space
 ; X64:      movq %rax, %rdi
 
+; X32ABI-LABEL:      test_basic:
+
+; X32ABI:      cmpl %fs:64, %esp
+; X32ABI-NEXT: ja      .LBB0_2
+
+; X32ABI:      movl $24, %r10d
+; X32ABI-NEXT: movl $0, %r11d
+; X32ABI-NEXT: callq __morestack
+; X32ABI-NEXT: ret
+
+; X32ABI:      movl %esp, %[[EDI:edi|eax]]
+; X32ABI:      subl %{{.*}}, %[[EDI]]
+; X32ABI-NEXT: cmpl %[[EDI]], %fs:64
+
+; X32ABI:      movl %[[EDI]], %esp
+
+; X32ABI:      movl %{{.*}}, %edi
+; X32ABI-NEXT: callq __morestack_allocate_stack_space
+; X32ABI:      movl %eax, %edi
+
 }
 
 attributes #0 = { "split-stack" }