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llvm-mirror/test/CodeGen/X86/inline-asm-stack-realign2.ll
Reid Kleckner 9e1ba62c63 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.

llvm-svn: 196986
2013-12-10 23:23:52 +00:00

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LLVM

; 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 "push %esi\0A\09xor %esi, %esi\0A\09mov %esi, $0\0A\09pop %esi", "=*m,~{flags},~{esi},~{esp},~{dirflag},~{fpsr},~{flags}"(i32* %r)
%0 = load i32* %r, align 16
ret i32 %0
}