llvm-6502/test/CodeGen/Thumb2/2011-06-07-TwoAddrEarlyClobber.ll
Cameron Zwarich aaa5f14d7c Fix an issue where the two-address conversion pass incorrectly rewrites untied
operands to an early clobber register. This fixes <rdar://problem/9566076>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132738 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-07 23:54:00 +00:00

37 lines
1.3 KiB
LLVM

; RUN: llc < %s | FileCheck %s
target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:32:64-v128:32:128-a0:0:32-n32"
target triple = "thumbv7-apple-darwin10"
%struct.op = type { %struct.op*, %struct.op*, %struct.op* ()*, i32, i16, i16, i8, i8 }
; CHECK: Perl_ck_sort
; CHECK: ldr
; CHECK: mov [[REGISTER:(r[0-9]+)|(lr)]]
; CHECK: str {{(r[0-9])|(lr)}}, {{\[}}[[REGISTER]]{{\]}}, #24
define void @Perl_ck_sort() nounwind optsize {
entry:
%tmp27 = load %struct.op** undef, align 4
switch i16 undef, label %if.end151 [
i16 178, label %if.then60
i16 177, label %if.then60
]
if.then60: ; preds = %if.then40
br i1 undef, label %if.then67, label %if.end95
if.then67: ; preds = %if.then60
%op_next71 = getelementptr inbounds %struct.op* %tmp27, i32 0, i32 0
store %struct.op* %tmp27, %struct.op** %op_next71, align 4
%0 = getelementptr inbounds %struct.op* %tmp27, i32 1, i32 0
br label %if.end95
if.end95: ; preds = %if.else92, %if.then67
%.pre-phi = phi %struct.op** [ undef, %if.then60 ], [ %0, %if.then67 ]
%tmp98 = load %struct.op** %.pre-phi, align 4
br label %if.end151
if.end151: ; preds = %if.end100, %if.end, %entry
ret void
}