From 75a19169fd7a788ccdb6a2db91c0a393fc7b243a Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Thu, 21 Feb 2008 19:43:13 +0000
Subject: Treat clobber operands like early clobbers: if we have any, we force
sdisel to do all regalloc for an asm. This leads to gross but correct
codegen.
This fixes the rest of PR2078.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47454 91177308-0d34-0410-b5e6-96231b3b80d8
---
test/CodeGen/X86/2008-02-20-InlineAsmClobber.ll | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
(limited to 'test')
diff --git a/test/CodeGen/X86/2008-02-20-InlineAsmClobber.ll b/test/CodeGen/X86/2008-02-20-InlineAsmClobber.ll
index 94f4e18..d49d5bf 100644
--- a/test/CodeGen/X86/2008-02-20-InlineAsmClobber.ll
+++ b/test/CodeGen/X86/2008-02-20-InlineAsmClobber.ll
@@ -1,4 +1,5 @@
-; RUN: llvm-as < %s | llc | grep {%ecx %ecx}
+; RUN: llvm-as < %s | llc | grep {a: %ecx %ecx}
+; RUN: llvm-as < %s | llc | grep {b: %ecx %edx %ecx}
; PR2078
; The clobber list says that "ax" is clobbered. Make sure that eax isn't
; allocated to the input/output register.
@@ -9,7 +10,15 @@ target triple = "i386-apple-darwin8"
define void @test() nounwind {
entry:
%tmp = load i32* @pixels, align 4 ; <i32> [#uses=1]
- %tmp1 = tail call i32 asm sideeffect "$0 $1", "=r,0,~{dirflag},~{fpsr},~{flags},~{ax}"( i32 %tmp ) nounwind ; <i32> [#uses=1]
+ %tmp1 = tail call i32 asm sideeffect "a: $0 $1", "=r,0,~{dirflag},~{fpsr},~{flags},~{ax}"( i32 %tmp ) nounwind ; <i32> [#uses=1]
store i32 %tmp1, i32* @pixels, align 4
ret void
}
+
+define void @test2(i16* %block, i8* %pixels, i32 %line_size) nounwind {
+entry:
+ %tmp1 = getelementptr i16* %block, i32 64 ; <i16*> [#uses=1]
+ %tmp3 = tail call i8* asm sideeffect "b: $0 $1 $2", "=r,r,0,~{dirflag},~{fpsr},~{flags},~{ax}"( i16* %tmp1, i8* %pixels ) nounwind ; <i8*> [#uses=0]
+ ret void
+}
+
--
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