mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 19:23:23 +01:00
1c46c7087d
It caused assertions to fire when building Chromium:
lib/CodeGen/LiveDebugValues.cpp:331: bool
{anonymous}::LiveDebugValues::OpenRangesSet::empty() const: Assertion
`Vars.empty() == VarLocs.empty() && "open ranges are inconsistent"' failed.
See https://crbug.com/992871#c3 for how to reproduce.
> Patch https://reviews.llvm.org/D43256 introduced more aggressive loop layout optimization which depends on profile information. If profile information is not available, the statically estimated profile information(generated by BranchProbabilityInfo.cpp) is used. If user program doesn't behave as BranchProbabilityInfo.cpp expected, the layout may be worse.
>
> To be conservative this patch restores the original layout algorithm in plain mode. But user can still try the aggressive layout optimization with -force-precise-rotation-cost=true.
>
> Differential Revision: https://reviews.llvm.org/D65673
llvm-svn: 368579
69 lines
2.1 KiB
LLVM
69 lines
2.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+sse4.2 | FileCheck %s
|
|
|
|
define void @update(<3 x i8>* %dst, <3 x i8>* %src, i32 %n) nounwind {
|
|
; CHECK-LABEL: update:
|
|
; CHECK: # %bb.0: # %entry
|
|
; CHECK-NEXT: pushl %eax
|
|
; CHECK-NEXT: movl $0, (%esp)
|
|
; CHECK-NEXT: pcmpeqd %xmm0, %xmm0
|
|
; CHECK-NEXT: .p2align 4, 0x90
|
|
; CHECK-NEXT: .LBB0_1: # %forcond
|
|
; CHECK-NEXT: # =>This Inner Loop Header: Depth=1
|
|
; CHECK-NEXT: movl (%esp), %eax
|
|
; CHECK-NEXT: cmpl {{[0-9]+}}(%esp), %eax
|
|
; CHECK-NEXT: jge .LBB0_3
|
|
; CHECK-NEXT: # %bb.2: # %forbody
|
|
; CHECK-NEXT: # in Loop: Header=BB0_1 Depth=1
|
|
; CHECK-NEXT: movl (%esp), %eax
|
|
; CHECK-NEXT: movl {{[0-9]+}}(%esp), %ecx
|
|
; CHECK-NEXT: movl {{[0-9]+}}(%esp), %edx
|
|
; CHECK-NEXT: movd {{.*#+}} xmm1 = mem[0],zero,zero,zero
|
|
; CHECK-NEXT: psubb %xmm0, %xmm1
|
|
; CHECK-NEXT: pextrb $2, %xmm1, 2(%ecx,%eax,4)
|
|
; CHECK-NEXT: pextrw $0, %xmm1, (%ecx,%eax,4)
|
|
; CHECK-NEXT: incl (%esp)
|
|
; CHECK-NEXT: jmp .LBB0_1
|
|
; CHECK-NEXT: .LBB0_3: # %afterfor
|
|
; CHECK-NEXT: popl %eax
|
|
; CHECK-NEXT: retl
|
|
entry:
|
|
%dst.addr = alloca <3 x i8>*
|
|
%src.addr = alloca <3 x i8>*
|
|
%n.addr = alloca i32
|
|
%i = alloca i32, align 4
|
|
store <3 x i8>* %dst, <3 x i8>** %dst.addr
|
|
store <3 x i8>* %src, <3 x i8>** %src.addr
|
|
store i32 %n, i32* %n.addr
|
|
store i32 0, i32* %i
|
|
br label %forcond
|
|
|
|
forcond:
|
|
%tmp = load i32, i32* %i
|
|
%tmp1 = load i32, i32* %n.addr
|
|
%cmp = icmp slt i32 %tmp, %tmp1
|
|
br i1 %cmp, label %forbody, label %afterfor
|
|
|
|
forbody:
|
|
%tmp2 = load i32, i32* %i
|
|
%tmp3 = load <3 x i8>*, <3 x i8>** %dst.addr
|
|
%arrayidx = getelementptr <3 x i8>, <3 x i8>* %tmp3, i32 %tmp2
|
|
%tmp4 = load i32, i32* %i
|
|
%tmp5 = load <3 x i8>*, <3 x i8>** %src.addr
|
|
%arrayidx6 = getelementptr <3 x i8>, <3 x i8>* %tmp5, i32 %tmp4
|
|
%tmp7 = load <3 x i8>, <3 x i8>* %arrayidx6
|
|
%add = add <3 x i8> %tmp7, < i8 1, i8 1, i8 1 >
|
|
store <3 x i8> %add, <3 x i8>* %arrayidx
|
|
br label %forinc
|
|
|
|
forinc:
|
|
%tmp8 = load i32, i32* %i
|
|
%inc = add i32 %tmp8, 1
|
|
store i32 %inc, i32* %i
|
|
br label %forcond
|
|
|
|
afterfor:
|
|
ret void
|
|
}
|
|
|