mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-12-05 10:17:36 +00:00
Revert r141569 and r141576.
llvm-svn: 141594
This commit is contained in:
parent
ab5dbe090b
commit
e6091c61c7
@ -168,11 +168,6 @@ namespace {
|
||||
///
|
||||
bool IsLoopInvariantInst(MachineInstr &I);
|
||||
|
||||
/// IsGuaranteedToExecute - check to make sure that the MI dominates
|
||||
/// all of the exit blocks. If it doesn't, then there is a path out of the
|
||||
/// loop which does not execute this instruction, so we can't hoist it.
|
||||
bool IsGuaranteedToExecute(MachineInstr *MI);
|
||||
|
||||
/// HasAnyPHIUse - Return true if the specified register is used by any
|
||||
/// phi node.
|
||||
bool HasAnyPHIUse(unsigned Reg) const;
|
||||
@ -1134,28 +1129,6 @@ bool MachineLICM::EliminateCSE(MachineInstr *MI,
|
||||
return false;
|
||||
}
|
||||
|
||||
/// IsGuaranteedToExecute - check to make sure that the instruction dominates
|
||||
/// all of the exit blocks. If it doesn't, then there is a path out of the loop
|
||||
/// which does not execute this instruction, so we can't hoist it.
|
||||
bool MachineLICM::IsGuaranteedToExecute(MachineInstr *MI) {
|
||||
// If the instruction is in the header block for the loop (which is very
|
||||
// common), it is always guaranteed to dominate the exit blocks. Since this
|
||||
// is a common case, and can save some work, check it now.
|
||||
if (MI->getParent() == CurLoop->getHeader())
|
||||
return true;
|
||||
|
||||
// Get the exit blocks for the current loop.
|
||||
SmallVector<MachineBasicBlock*, 8> ExitingBlocks;
|
||||
CurLoop->getExitingBlocks(ExitingBlocks);
|
||||
|
||||
// Verify that the block dominates each of the exit blocks of the loop.
|
||||
for (unsigned i = 0, e = ExitingBlocks.size(); i != e; ++i)
|
||||
if (!DT->dominates(MI->getParent(), ExitingBlocks[i]))
|
||||
return false;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
/// Hoist - When an instruction is found to use only loop invariant operands
|
||||
/// that are safe to hoist, this instruction is called to do the dirty work.
|
||||
///
|
||||
@ -1166,8 +1139,6 @@ bool MachineLICM::Hoist(MachineInstr *MI, MachineBasicBlock *Preheader) {
|
||||
MI = ExtractHoistableLoad(MI);
|
||||
if (!MI) return false;
|
||||
}
|
||||
if (!IsGuaranteedToExecute(MI))
|
||||
return false;
|
||||
|
||||
// Now move the instructions to the predecessor, inserting it before any
|
||||
// terminator instructions.
|
||||
|
@ -4,11 +4,12 @@
|
||||
; register pressure and therefore spilling. There is more room for improvement
|
||||
; here.
|
||||
|
||||
; CHECK: sub sp, #{{40|32|28|24}}
|
||||
; CHECK: sub sp, #{{32|28|24}}
|
||||
|
||||
; CHECK: %for.inc
|
||||
; CHECK: ldr{{(.w)?}} r{{.*}}, [sp, #
|
||||
; CHECK: ldr{{(.w)?}} r{{.*}}, [sp, #
|
||||
; CHECK: ldr{{(.w)?}} r{{.*}}, [sp, #
|
||||
; CHECK: add
|
||||
|
||||
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"
|
||||
|
@ -1,56 +0,0 @@
|
||||
; RUN: llc < %s | FileCheck %s
|
||||
|
||||
; MachineLICM should check dominance before hoisting instructions.
|
||||
; CHECK: xorb %cl, %cl
|
||||
; CHECK-NEXT: testb %cl, %cl
|
||||
|
||||
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
|
||||
target triple = "x86_64-apple-macosx10.7.2"
|
||||
|
||||
define void @CMSColorWorldCreateParametricData() nounwind uwtable optsize ssp {
|
||||
entry:
|
||||
br label %for.body.i
|
||||
|
||||
for.body.i: ; preds = %entry
|
||||
br i1 undef, label %for.inc.i, label %land.lhs.true21.i
|
||||
|
||||
land.lhs.true21.i: ; preds = %for.body.i
|
||||
br i1 undef, label %if.then26.i, label %for.inc.i
|
||||
|
||||
if.then26.i: ; preds = %land.lhs.true21.i
|
||||
br i1 undef, label %if.else.i.i, label %if.then.i.i
|
||||
|
||||
if.then.i.i: ; preds = %if.then26.i
|
||||
unreachable
|
||||
|
||||
if.else.i.i: ; preds = %if.then26.i
|
||||
br i1 undef, label %lor.lhs.false.i.i, label %if.then116.i.i
|
||||
|
||||
lor.lhs.false.i.i: ; preds = %if.else.i.i
|
||||
br i1 undef, label %lor.lhs.false104.i.i, label %if.then116.i.i
|
||||
|
||||
lor.lhs.false104.i.i: ; preds = %lor.lhs.false.i.i
|
||||
br i1 undef, label %lor.lhs.false108.i.i, label %if.then116.i.i
|
||||
|
||||
lor.lhs.false108.i.i: ; preds = %lor.lhs.false104.i.i
|
||||
br i1 undef, label %lor.lhs.false112.i.i, label %if.then116.i.i
|
||||
|
||||
lor.lhs.false112.i.i: ; preds = %lor.lhs.false108.i.i
|
||||
br i1 undef, label %if.else232.i.i, label %if.then116.i.i
|
||||
|
||||
if.then116.i.i: ; preds = %lor.lhs.false112.i.i, %lor.lhs.false108.i.i, %lor.lhs.false104.i.i, %lor.lhs.false.i.i, %if.else.i.i
|
||||
unreachable
|
||||
|
||||
if.else232.i.i: ; preds = %lor.lhs.false112.i.i
|
||||
br label %for.inc.i
|
||||
|
||||
for.inc.i: ; preds = %if.else232.i.i, %land.lhs.true21.i, %for.body.i
|
||||
%cmp17.i = icmp ult i64 undef, undef
|
||||
br i1 %cmp17.i, label %for.body.i, label %if.end28.i
|
||||
|
||||
if.end28.i: ; preds = %for.inc.i, %if.then10.i, %if.then6.i
|
||||
unreachable
|
||||
|
||||
createTransformParams.exit: ; preds = %land.lhs.true3.i, %if.then.i, %land.lhs.true.i, %entry
|
||||
ret void
|
||||
}
|
@ -1,4 +1,4 @@
|
||||
; RUN: llc -mtriple=x86_64-apple-darwin -march=x86-64 < %s -o /dev/null -stats -info-output-file - | grep machine-licm | grep 2
|
||||
; RUN: llc -mtriple=x86_64-apple-darwin -march=x86-64 < %s -o /dev/null -stats -info-output-file - | grep machine-licm | grep 3
|
||||
|
||||
; MachineLICM should be able to hoist the symbolic addresses out of
|
||||
; the inner loops.
|
||||
|
@ -84,6 +84,65 @@ return:
|
||||
; ret i8 %b_addr.0
|
||||
; }
|
||||
|
||||
; Codegen should hoist and CSE these constants.
|
||||
|
||||
; CHECK: vv:
|
||||
; CHECK: LCPI3_0(%rip), %xmm0
|
||||
; CHECK: LCPI3_1(%rip), %xmm1
|
||||
; CHECK: LCPI3_2(%rip), %xmm2
|
||||
; CHECK: align
|
||||
; CHECK-NOT: LCPI
|
||||
; CHECK: ret
|
||||
|
||||
@_minusZero.6007 = internal constant <4 x float> <float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00> ; <<4 x float>*> [#uses=0]
|
||||
@twoTo23.6008 = internal constant <4 x float> <float 8.388608e+06, float 8.388608e+06, float 8.388608e+06, float 8.388608e+06> ; <<4 x float>*> [#uses=0]
|
||||
|
||||
define void @vv(float* %y, float* %x, i32* %n) nounwind ssp {
|
||||
entry:
|
||||
br label %bb60
|
||||
|
||||
bb: ; preds = %bb60
|
||||
%0 = bitcast float* %x_addr.0 to <4 x float>* ; <<4 x float>*> [#uses=1]
|
||||
%1 = load <4 x float>* %0, align 16 ; <<4 x float>> [#uses=4]
|
||||
%tmp20 = bitcast <4 x float> %1 to <4 x i32> ; <<4 x i32>> [#uses=1]
|
||||
%tmp22 = and <4 x i32> %tmp20, <i32 2147483647, i32 2147483647, i32 2147483647, i32 2147483647> ; <<4 x i32>> [#uses=1]
|
||||
%tmp23 = bitcast <4 x i32> %tmp22 to <4 x float> ; <<4 x float>> [#uses=1]
|
||||
%tmp25 = bitcast <4 x float> %1 to <4 x i32> ; <<4 x i32>> [#uses=1]
|
||||
%tmp27 = and <4 x i32> %tmp25, <i32 -2147483648, i32 -2147483648, i32 -2147483648, i32 -2147483648> ; <<4 x i32>> [#uses=2]
|
||||
%tmp30 = call <4 x float> @llvm.x86.sse.cmp.ps(<4 x float> %tmp23, <4 x float> <float 8.388608e+06, float 8.388608e+06, float 8.388608e+06, float 8.388608e+06>, i8 5) ; <<4 x float>> [#uses=1]
|
||||
%tmp34 = bitcast <4 x float> %tmp30 to <4 x i32> ; <<4 x i32>> [#uses=1]
|
||||
%tmp36 = xor <4 x i32> %tmp34, <i32 -1, i32 -1, i32 -1, i32 -1> ; <<4 x i32>> [#uses=1]
|
||||
%tmp37 = and <4 x i32> %tmp36, <i32 1258291200, i32 1258291200, i32 1258291200, i32 1258291200> ; <<4 x i32>> [#uses=1]
|
||||
%tmp42 = or <4 x i32> %tmp37, %tmp27 ; <<4 x i32>> [#uses=1]
|
||||
%tmp43 = bitcast <4 x i32> %tmp42 to <4 x float> ; <<4 x float>> [#uses=2]
|
||||
%tmp45 = fadd <4 x float> %1, %tmp43 ; <<4 x float>> [#uses=1]
|
||||
%tmp47 = fsub <4 x float> %tmp45, %tmp43 ; <<4 x float>> [#uses=2]
|
||||
%tmp49 = call <4 x float> @llvm.x86.sse.cmp.ps(<4 x float> %1, <4 x float> %tmp47, i8 1) ; <<4 x float>> [#uses=1]
|
||||
%2 = bitcast <4 x float> %tmp49 to <4 x i32> ; <<4 x i32>> [#uses=1]
|
||||
%3 = call <4 x float> @llvm.x86.sse2.cvtdq2ps(<4 x i32> %2) nounwind readnone ; <<4 x float>> [#uses=1]
|
||||
%tmp53 = fadd <4 x float> %tmp47, %3 ; <<4 x float>> [#uses=1]
|
||||
%tmp55 = bitcast <4 x float> %tmp53 to <4 x i32> ; <<4 x i32>> [#uses=1]
|
||||
%tmp57 = or <4 x i32> %tmp55, %tmp27 ; <<4 x i32>> [#uses=1]
|
||||
%tmp58 = bitcast <4 x i32> %tmp57 to <4 x float> ; <<4 x float>> [#uses=1]
|
||||
%4 = bitcast float* %y_addr.0 to <4 x float>* ; <<4 x float>*> [#uses=1]
|
||||
store <4 x float> %tmp58, <4 x float>* %4, align 16
|
||||
%5 = getelementptr float* %x_addr.0, i64 4 ; <float*> [#uses=1]
|
||||
%6 = getelementptr float* %y_addr.0, i64 4 ; <float*> [#uses=1]
|
||||
%7 = add i32 %i.0, 4 ; <i32> [#uses=1]
|
||||
br label %bb60
|
||||
|
||||
bb60: ; preds = %bb, %entry
|
||||
%i.0 = phi i32 [ 0, %entry ], [ %7, %bb ] ; <i32> [#uses=2]
|
||||
%x_addr.0 = phi float* [ %x, %entry ], [ %5, %bb ] ; <float*> [#uses=2]
|
||||
%y_addr.0 = phi float* [ %y, %entry ], [ %6, %bb ] ; <float*> [#uses=2]
|
||||
%8 = load i32* %n, align 4 ; <i32> [#uses=1]
|
||||
%9 = icmp sgt i32 %8, %i.0 ; <i1> [#uses=1]
|
||||
br i1 %9, label %bb, label %return
|
||||
|
||||
return: ; preds = %bb60
|
||||
ret void
|
||||
}
|
||||
|
||||
declare <4 x float> @llvm.x86.sse.cmp.ps(<4 x float>, <4 x float>, i8) nounwind readnone
|
||||
|
||||
declare <4 x float> @llvm.x86.sse2.cvtdq2ps(<4 x i32>) nounwind readnone
|
||||
|
@ -1,6 +1,5 @@
|
||||
; RUN: llc < %s -march=x86-64 -mattr=+sse42 | FileCheck %s
|
||||
; CHECK: psubw
|
||||
; CHECK-NEXT: movdqa
|
||||
; CHECK-NEXT: pmullw
|
||||
|
||||
; Widen a v5i16 to v8i16 to do a vector sub and multiple
|
||||
|
Loading…
Reference in New Issue
Block a user