llvm-6502/test/CodeGen/X86/inline-asm-stack-realign.ll

; RUN: not llc -mtriple=i686-pc-win32 < %s 2>&1 | FileCheck %s

; FIXME: This is miscompiled due to our unconditional use of ESI as the base
; pointer.
; XFAIL: *

; CHECK: Stack realignment in presence of dynamic stack adjustments is not supported with inline assembly

define i32 @foo() {
entry:
  %r = alloca i32, align 16
  store i32 -1, i32* %r, align 16
  call void asm sideeffect inteldialect "push esi\0A\09xor esi, esi\0A\09mov dword ptr $0, esi\0A\09pop esi", "=*m,~{flags},~{esi},~{esp},~{dirflag},~{fpsr},~{flags}"(i32* %r)
  %0 = load i32* %r, align 16
  ret i32 %0
}
Reland "Fix miscompile of MS inline assembly with stack realignment" This re-lands commit r196876, which was reverted in r196879. The tests have been fixed to pass on platforms with a stack alignment larger than 4. Update to clang side tests will land shortly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196939 91177308-0d34-0410-b5e6-96231b3b80d8 2013-12-10 18:27:32 +00:00			`; RUN: not llc -mtriple=i686-pc-win32 < %s 2>&1 \| FileCheck %s`

Revert the backend fatal error from r196939 The combination of inline asm, stack realignment, and dynamic allocas turns out to be too common to reject out of hand. ASan inserts empy inline asm fragments and uses aligned allocas. Compiling any trivial function containing a dynamic alloca with ASan is enough to trigger the check. XFAIL the test cases that would be miscompiled and add one that uses the relevant functionality. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196986 91177308-0d34-0410-b5e6-96231b3b80d8 2013-12-10 23:23:52 +00:00			`; FIXME: This is miscompiled due to our unconditional use of ESI as the base`
			`; pointer.`
Fix XFAIL rules. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197017 91177308-0d34-0410-b5e6-96231b3b80d8 2013-12-11 08:38:42 +00:00			`; XFAIL: *`
Reland "Fix miscompile of MS inline assembly with stack realignment" This re-lands commit r196876, which was reverted in r196879. The tests have been fixed to pass on platforms with a stack alignment larger than 4. Update to clang side tests will land shortly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196939 91177308-0d34-0410-b5e6-96231b3b80d8 2013-12-10 18:27:32 +00:00
			`; CHECK: Stack realignment in presence of dynamic stack adjustments is not supported with inline assembly`

			`define i32 @foo() {`
			`entry:`
			`%r = alloca i32, align 16`
			`store i32 -1, i32* %r, align 16`
			`call void asm sideeffect inteldialect "push esi\0A\09xor esi, esi\0A\09mov dword ptr $0, esi\0A\09pop esi", "=m,~{flags},~{esi},~{esp},~{dirflag},~{fpsr},~{flags}"(i32 %r)`
			`%0 = load i32* %r, align 16`
			`ret i32 %0`
			`}`