llvm/test/CodeGen/X86/2011-06-14-PreschedRegalias.ll

; RUN: llc < %s -march=x86-64 -stress-sched | FileCheck %s
; REQUIRES: asserts
; Test interference between physreg aliases during preRAsched.
; mul wants an operand in AL, but call clobbers it.

define i8 @f(i8 %v1, i8 %v2) nounwind {
entry:
; CHECK: callq
; CHECK: movb %{{.*}}, %al
; CHECK: mulb
; CHECK: mulb
        %rval = tail call i8 @bar() nounwind
        %m1 = mul i8 %v1, %v2
        %m2 = mul i8 %m1, %rval
        ret i8 %m2
}

declare i8 @bar()
Reenabling this test with REQUIRES: Asserts git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133132 91177308-0d34-0410-b5e6-96231b3b80d8 2011-06-16 01:34:41 +00:00			`; RUN: llc < %s -march=x86-64 -stress-sched \| FileCheck %s`
lit support for REQUIRES: asserts. Take #2. Don't piggyback on the existing config.build_mode. Instead, define a new lit feature for each build feature we need (currently just "asserts"). Teach both autoconf'd and cmake'd Makefiles to define this feature within test/lit.site.cfg. This doesn't require any lit harness changes and should be more robust across build systems. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133664 91177308-0d34-0410-b5e6-96231b3b80d8 2011-06-22 23:23:19 +00:00			`; REQUIRES: asserts`
Added -stress-sched flag in the Asserts build. Added a test case for handling physreg aliases during pre-RA-sched. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133063 91177308-0d34-0410-b5e6-96231b3b80d8 2011-06-15 17:16:12 +00:00			`; Test interference between physreg aliases during preRAsched.`
			`; mul wants an operand in AL, but call clobbers it.`

			`define i8 @f(i8 %v1, i8 %v2) nounwind {`
			`entry:`
			`; CHECK: callq`
			`; CHECK: movb %{{.*}}, %al`
			`; CHECK: mulb`
			`; CHECK: mulb`
			`%rval = tail call i8 @bar() nounwind`
			`%m1 = mul i8 %v1, %v2`
			`%m2 = mul i8 %m1, %rval`
			`ret i8 %m2`
			`}`

			`declare i8 @bar()`