mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-30 23:42:52 +01:00
7dda42fc61
I was too optimistic, inline asm can have tied operands that don't follow the def order. Fixes PR13742. llvm-svn: 162998
31 lines
1.2 KiB
LLVM
31 lines
1.2 KiB
LLVM
; RUN: llc < %s -mtriple=i386-apple-darwin9 -O0 -optimize-regalloc -regalloc=basic | FileCheck %s
|
|
; rdar://6992609
|
|
|
|
; CHECK: movl [[EDX:%e..]], 4(%esp)
|
|
; CHECK: movl [[EDX]], 4(%esp)
|
|
target triple = "i386-apple-darwin9.0"
|
|
@llvm.used = appending global [1 x i8*] [i8* bitcast (i64 (i64)* @_OSSwapInt64 to i8*)], section "llvm.metadata" ; <[1 x i8*]*> [#uses=0]
|
|
|
|
define i64 @_OSSwapInt64(i64 %_data) nounwind {
|
|
entry:
|
|
%retval = alloca i64 ; <i64*> [#uses=2]
|
|
%_data.addr = alloca i64 ; <i64*> [#uses=4]
|
|
store i64 %_data, i64* %_data.addr
|
|
%tmp = load i64* %_data.addr ; <i64> [#uses=1]
|
|
%0 = call i64 asm "bswap %eax\0A\09bswap %edx\0A\09xchgl %eax, %edx", "=A,0,~{dirflag},~{fpsr},~{flags}"(i64 %tmp) nounwind ; <i64> [#uses=1]
|
|
store i64 %0, i64* %_data.addr
|
|
%tmp1 = load i64* %_data.addr ; <i64> [#uses=1]
|
|
store i64 %tmp1, i64* %retval
|
|
%1 = load i64* %retval ; <i64> [#uses=1]
|
|
ret i64 %1
|
|
}
|
|
|
|
; The tied operands are not necessarily in the same order as the defs.
|
|
; PR13742
|
|
define i64 @swapped(i64 %x, i64 %y) nounwind {
|
|
entry:
|
|
%x0 = call { i64, i64 } asm "foo", "=r,=r,1,0,~{dirflag},~{fpsr},~{flags}"(i64 %x, i64 %y) nounwind
|
|
%x1 = extractvalue { i64, i64 } %x0, 0
|
|
ret i64 %x1
|
|
}
|