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| author | Rafael Espindola <rafael.espindola@gmail.com> | 2012-01-11 18:51:03 +0000 |
|---|---|---|
| committer | Rafael Espindola <rafael.espindola@gmail.com> | 2012-01-11 18:51:03 +0000 |
| commit | 7692ce9e810ed1707da46faf20c84f1ffd54bc55 (patch) | |
| tree | ef97af9800622fd06bf59e75f862ad9f33ac4cc9 /test/CodeGen/X86/segmented-stacks-dynamic.ll | |
| parent | 25cd4ff97e882ad5039dec15b0c9be8fef062b6b (diff) | |
| download | llvm-7692ce9e810ed1707da46faf20c84f1ffd54bc55.tar.gz llvm-7692ce9e810ed1707da46faf20c84f1ffd54bc55.tar.bz2 llvm-7692ce9e810ed1707da46faf20c84f1ffd54bc55.tar.xz | |
Split segmented stacks tests into tests for static- and dynamic-size frames.
Patch by Brian Anderson.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147959 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/segmented-stacks-dynamic.ll')
| -rw-r--r-- | test/CodeGen/X86/segmented-stacks-dynamic.ll | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/test/CodeGen/X86/segmented-stacks-dynamic.ll b/test/CodeGen/X86/segmented-stacks-dynamic.ll new file mode 100644 index 0000000000..103551b91a --- /dev/null +++ b/test/CodeGen/X86/segmented-stacks-dynamic.ll @@ -0,0 +1,64 @@ +; RUN: llc < %s -mtriple=i686-linux -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=X32 +; RUN: llc < %s -mtriple=x86_64-linux -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=X64 +; RUN: llc < %s -mtriple=i686-linux -segmented-stacks -filetype=obj +; RUN: llc < %s -mtriple=x86_64-linux -segmented-stacks -filetype=obj + +; Just to prevent the alloca from being optimized away +declare void @dummy_use(i32*, i32) + +define i32 @test_basic(i32 %l) { + %mem = alloca i32, i32 %l + call void @dummy_use (i32* %mem, i32 %l) + %terminate = icmp eq i32 %l, 0 + br i1 %terminate, label %true, label %false + +true: + ret i32 0 + +false: + %newlen = sub i32 %l, 1 + %retvalue = call i32 @test_basic(i32 %newlen) + ret i32 %retvalue + +; X32: test_basic: + +; X32: cmpl %gs:48, %esp +; X32-NEXT: ja .LBB0_2 + +; X32: pushl $4 +; X32-NEXT: pushl $12 +; X32-NEXT: calll __morestack +; X32-NEXT: ret + +; X32: movl %esp, %eax +; X32-NEXT: subl %ecx, %eax +; X32-NEXT: cmpl %eax, %gs:48 + +; X32: movl %eax, %esp + +; X32: subl $12, %esp +; X32-NEXT: pushl %ecx +; X32-NEXT: calll __morestack_allocate_stack_space +; X32-NEXT: addl $16, %esp + +; X64: test_basic: + +; X64: cmpq %fs:112, %rsp +; X64-NEXT: ja .LBB0_2 + +; X64: movabsq $24, %r10 +; X64-NEXT: movabsq $0, %r11 +; X64-NEXT: callq __morestack +; X64-NEXT: ret + +; X64: movq %rsp, %rdi +; X64-NEXT: subq %rax, %rdi +; X64-NEXT: cmpq %rdi, %fs:112 + +; X64: movq %rdi, %rsp + +; X64: movq %rax, %rdi +; X64-NEXT: callq __morestack_allocate_stack_space +; X64-NEXT: movq %rax, %rdi + +} |