mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-12-21 19:20:28 +00:00
4184c23365
for earlyclobbers. Teach Local RA about earlyclobber, and add some tests for it. llvm-svn: 56592
27 lines
1.6 KiB
LLVM
27 lines
1.6 KiB
LLVM
; RUN: llvm-as < %s | llc -march=x86 | grep "#%ebp %eax %edx 8(%esi) %ebx (%edi)"
|
|
; RUN: llvm-as < %s | llc -march=x86 -regalloc=local | grep "#%ecx %eax %edx 8(%edi) %ebx (%esi)"
|
|
; The 1st, 2nd, 3rd and 5th registers above must all be different. The registers
|
|
; referenced in the 4th and 6th operands must not be the same as the 1st or 5th
|
|
; operand. There are many combinations that work; this is what llc puts out now.
|
|
; ModuleID = '<stdin>'
|
|
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
|
|
target triple = "i386-apple-darwin8"
|
|
%struct.foo = type { i32, i32, i8* }
|
|
|
|
define i32 @get(%struct.foo* %c, i8* %state) nounwind {
|
|
entry:
|
|
%0 = getelementptr %struct.foo* %c, i32 0, i32 0 ; <i32*> [#uses=2]
|
|
%1 = getelementptr %struct.foo* %c, i32 0, i32 1 ; <i32*> [#uses=2]
|
|
%2 = getelementptr %struct.foo* %c, i32 0, i32 2 ; <i8**> [#uses=2]
|
|
%3 = load i32* %0, align 4 ; <i32> [#uses=1]
|
|
%4 = load i32* %1, align 4 ; <i32> [#uses=1]
|
|
%5 = load i8* %state, align 1 ; <i8> [#uses=1]
|
|
%asmtmp = tail call { i32, i32, i32, i32 } asm sideeffect "#$0 $1 $2 $3 $4 $5", "=&r,=r,=r,=*m,=&q,=*imr,1,2,*m,5,~{dirflag},~{fpsr},~{flags},~{cx}"(i8** %2, i8* %state, i32 %3, i32 %4, i8** %2, i8 %5) nounwind ; <{ i32, i32, i32, i32 }> [#uses=3]
|
|
%asmresult = extractvalue { i32, i32, i32, i32 } %asmtmp, 0 ; <i32> [#uses=1]
|
|
%asmresult1 = extractvalue { i32, i32, i32, i32 } %asmtmp, 1 ; <i32> [#uses=1]
|
|
store i32 %asmresult1, i32* %0
|
|
%asmresult2 = extractvalue { i32, i32, i32, i32 } %asmtmp, 2 ; <i32> [#uses=1]
|
|
store i32 %asmresult2, i32* %1
|
|
ret i32 %asmresult
|
|
}
|