diff options
| author | Joerg Sonnenberger <joerg@bec.de> | 2012-01-10 22:43:53 +0000 |
|---|---|---|
| committer | Joerg Sonnenberger <joerg@bec.de> | 2012-01-10 22:43:53 +0000 |
| commit | 216f63702fabd57ac570feebc56005b2a5cb3216 (patch) | |
| tree | c70b876cc57e4768c26e3b722cef1ecc08eaaabe | |
| parent | 19d0bf3a9273d337b776ca33c284fd2b5da485ab (diff) | |
Default stack alignment for 32bit x86 should be 4 Bytes, not 8 Bytes.
Add a test that checks the stack alignment of a simple function for
Darwin, Linux and NetBSD for 32bit and 64bit mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147888 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/X86/X86Subtarget.cpp | 2 | ||||
| -rw-r--r-- | test/CodeGen/X86/stack-align2.ll | 25 |
2 files changed, 26 insertions, 1 deletions
diff --git a/lib/Target/X86/X86Subtarget.cpp b/lib/Target/X86/X86Subtarget.cpp index d78003284a..f4a6261973 100644 --- a/lib/Target/X86/X86Subtarget.cpp +++ b/lib/Target/X86/X86Subtarget.cpp @@ -333,7 +333,7 @@ X86Subtarget::X86Subtarget(const std::string &TT, const std::string &CPU, , IsUAMemFast(false) , HasVectorUAMem(false) , HasCmpxchg16b(false) - , stackAlignment(8) + , stackAlignment(4) // FIXME: this is a known good value for Yonah. How about others? , MaxInlineSizeThreshold(128) , TargetTriple(TT) diff --git a/test/CodeGen/X86/stack-align2.ll b/test/CodeGen/X86/stack-align2.ll new file mode 100644 index 0000000000..5523c0e14d --- /dev/null +++ b/test/CodeGen/X86/stack-align2.ll @@ -0,0 +1,25 @@ +; RUN: llc < %s -mtriple=i386-linux | FileCheck %s -check-prefix=LINUX-I386 +; RUN: llc < %s -mtriple=i386-netbsd | FileCheck %s -check-prefix=NETBSD-I386 +; RUN: llc < %s -mtriple=i686-apple-darwin8 | FileCheck %s -check-prefix=DARWIN-I386 +; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s -check-prefix=LINUX-X86_64 +; RUN: llc < %s -mtriple=x86_64-netbsd | FileCheck %s -check-prefix=NETBSD-X86_64 +; RUN: llc < %s -mtriple=x86_64-apple-darwin8 | FileCheck %s -check-prefix=DARWIN-X86_64 + +define i32 @test() nounwind { +entry: + call void @test2() + ret i32 0 + +; LINUX-I386: subl $12, %esp +; DARWIN-I386: subl $12, %esp +; NETBSD-I386-NOT: subl {{.*}}, %esp + +; LINUX-X86_64: pushq %{{.*}} +; LINUX-X86_64-NOT: subq {{.*}}, %rsp +; DARWIN-X86_64: pushq %{{.*}} +; DARWIN-X86_64-NOT: subq {{.*}}, %rsp +; NETBSD-X86_64: pushq %{{.*}} +; NETBSD-X86_64-NOT: subq {{.*}}, %rsp +} + +declare void @test2() |