diff options
Diffstat (limited to 'llvm/test/Transforms/LoopStrengthReduce/X86/macro-fuse-cmp.ll')
| -rw-r--r-- | llvm/test/Transforms/LoopStrengthReduce/X86/macro-fuse-cmp.ll | 141 |
1 files changed, 0 insertions, 141 deletions
diff --git a/llvm/test/Transforms/LoopStrengthReduce/X86/macro-fuse-cmp.ll b/llvm/test/Transforms/LoopStrengthReduce/X86/macro-fuse-cmp.ll deleted file mode 100644 index 10a725a7ef2..00000000000 --- a/llvm/test/Transforms/LoopStrengthReduce/X86/macro-fuse-cmp.ll +++ /dev/null @@ -1,141 +0,0 @@ -; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py -; RUN: opt < %s -loop-reduce -mcpu=btver2 -S | FileCheck %s --check-prefix=JAG -; RUN: opt < %s -loop-reduce -mcpu=bdver2 -S | FileCheck %s --check-prefix=BUL -; RUN: opt < %s -loop-reduce -mcpu=haswell -S | FileCheck %s --check-prefix=HSW - -; RUN: llc < %s | FileCheck %s --check-prefix=BASE -; RUN: llc < %s -mattr=macrofusion | FileCheck %s --check-prefix=FUSE -; RUN: llc < %s -mattr=branchfusion | FileCheck %s --check-prefix=FUSE - -target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" -target triple = "x86_64-unknown-unknown" - -; PR35681 - https://bugs.llvm.org/show_bug.cgi?id=35681 -; FIXME: If a CPU can macro-fuse a compare and branch, then we discount that -; cost in LSR and avoid generating large offsets in each memory access. -; This reduces code size and may improve decode throughput. - -define void @maxArray(double* noalias nocapture %x, double* noalias nocapture readonly %y) { -; JAG-LABEL: @maxArray( -; JAG-NEXT: entry: -; JAG-NEXT: [[Y1:%.*]] = bitcast double* [[Y:%.*]] to i8* -; JAG-NEXT: [[X3:%.*]] = bitcast double* [[X:%.*]] to i8* -; JAG-NEXT: br label [[VECTOR_BODY:%.*]] -; JAG: vector.body: -; JAG-NEXT: [[LSR_IV:%.*]] = phi i64 [ [[LSR_IV_NEXT:%.*]], [[VECTOR_BODY]] ], [ -524288, [[ENTRY:%.*]] ] -; JAG-NEXT: [[UGLYGEP7:%.*]] = getelementptr i8, i8* [[X3]], i64 [[LSR_IV]] -; JAG-NEXT: [[UGLYGEP78:%.*]] = bitcast i8* [[UGLYGEP7]] to <2 x double>* -; JAG-NEXT: [[SCEVGEP9:%.*]] = getelementptr <2 x double>, <2 x double>* [[UGLYGEP78]], i64 32768 -; JAG-NEXT: [[UGLYGEP:%.*]] = getelementptr i8, i8* [[Y1]], i64 [[LSR_IV]] -; JAG-NEXT: [[UGLYGEP2:%.*]] = bitcast i8* [[UGLYGEP]] to <2 x double>* -; JAG-NEXT: [[SCEVGEP:%.*]] = getelementptr <2 x double>, <2 x double>* [[UGLYGEP2]], i64 32768 -; JAG-NEXT: [[XVAL:%.*]] = load <2 x double>, <2 x double>* [[SCEVGEP9]], align 8 -; JAG-NEXT: [[YVAL:%.*]] = load <2 x double>, <2 x double>* [[SCEVGEP]], align 8 -; JAG-NEXT: [[CMP:%.*]] = fcmp ogt <2 x double> [[YVAL]], [[XVAL]] -; JAG-NEXT: [[MAX:%.*]] = select <2 x i1> [[CMP]], <2 x double> [[YVAL]], <2 x double> [[XVAL]] -; JAG-NEXT: [[UGLYGEP4:%.*]] = getelementptr i8, i8* [[X3]], i64 [[LSR_IV]] -; JAG-NEXT: [[UGLYGEP45:%.*]] = bitcast i8* [[UGLYGEP4]] to <2 x double>* -; JAG-NEXT: [[SCEVGEP6:%.*]] = getelementptr <2 x double>, <2 x double>* [[UGLYGEP45]], i64 32768 -; JAG-NEXT: store <2 x double> [[MAX]], <2 x double>* [[SCEVGEP6]], align 8 -; JAG-NEXT: [[LSR_IV_NEXT]] = add nsw i64 [[LSR_IV]], 16 -; JAG-NEXT: [[DONE:%.*]] = icmp eq i64 [[LSR_IV_NEXT]], 0 -; JAG-NEXT: br i1 [[DONE]], label [[EXIT:%.*]], label [[VECTOR_BODY]] -; JAG: exit: -; JAG-NEXT: ret void -; -; BUL-LABEL: @maxArray( -; BUL-NEXT: entry: -; BUL-NEXT: br label [[VECTOR_BODY:%.*]] -; BUL: vector.body: -; BUL-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] -; BUL-NEXT: [[SCEVGEP4:%.*]] = getelementptr double, double* [[X:%.*]], i64 [[INDEX]] -; BUL-NEXT: [[SCEVGEP45:%.*]] = bitcast double* [[SCEVGEP4]] to <2 x double>* -; BUL-NEXT: [[SCEVGEP:%.*]] = getelementptr double, double* [[Y:%.*]], i64 [[INDEX]] -; BUL-NEXT: [[SCEVGEP1:%.*]] = bitcast double* [[SCEVGEP]] to <2 x double>* -; BUL-NEXT: [[XVAL:%.*]] = load <2 x double>, <2 x double>* [[SCEVGEP45]], align 8 -; BUL-NEXT: [[YVAL:%.*]] = load <2 x double>, <2 x double>* [[SCEVGEP1]], align 8 -; BUL-NEXT: [[CMP:%.*]] = fcmp ogt <2 x double> [[YVAL]], [[XVAL]] -; BUL-NEXT: [[MAX:%.*]] = select <2 x i1> [[CMP]], <2 x double> [[YVAL]], <2 x double> [[XVAL]] -; BUL-NEXT: [[SCEVGEP2:%.*]] = getelementptr double, double* [[X]], i64 [[INDEX]] -; BUL-NEXT: [[SCEVGEP23:%.*]] = bitcast double* [[SCEVGEP2]] to <2 x double>* -; BUL-NEXT: store <2 x double> [[MAX]], <2 x double>* [[SCEVGEP23]], align 8 -; BUL-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 2 -; BUL-NEXT: [[DONE:%.*]] = icmp eq i64 [[INDEX_NEXT]], 65536 -; BUL-NEXT: br i1 [[DONE]], label [[EXIT:%.*]], label [[VECTOR_BODY]] -; BUL: exit: -; BUL-NEXT: ret void -; -; HSW-LABEL: @maxArray( -; HSW-NEXT: entry: -; HSW-NEXT: br label [[VECTOR_BODY:%.*]] -; HSW: vector.body: -; HSW-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] -; HSW-NEXT: [[SCEVGEP4:%.*]] = getelementptr double, double* [[X:%.*]], i64 [[INDEX]] -; HSW-NEXT: [[SCEVGEP45:%.*]] = bitcast double* [[SCEVGEP4]] to <2 x double>* -; HSW-NEXT: [[SCEVGEP:%.*]] = getelementptr double, double* [[Y:%.*]], i64 [[INDEX]] -; HSW-NEXT: [[SCEVGEP1:%.*]] = bitcast double* [[SCEVGEP]] to <2 x double>* -; HSW-NEXT: [[XVAL:%.*]] = load <2 x double>, <2 x double>* [[SCEVGEP45]], align 8 -; HSW-NEXT: [[YVAL:%.*]] = load <2 x double>, <2 x double>* [[SCEVGEP1]], align 8 -; HSW-NEXT: [[CMP:%.*]] = fcmp ogt <2 x double> [[YVAL]], [[XVAL]] -; HSW-NEXT: [[MAX:%.*]] = select <2 x i1> [[CMP]], <2 x double> [[YVAL]], <2 x double> [[XVAL]] -; HSW-NEXT: [[SCEVGEP2:%.*]] = getelementptr double, double* [[X]], i64 [[INDEX]] -; HSW-NEXT: [[SCEVGEP23:%.*]] = bitcast double* [[SCEVGEP2]] to <2 x double>* -; HSW-NEXT: store <2 x double> [[MAX]], <2 x double>* [[SCEVGEP23]], align 8 -; HSW-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 2 -; HSW-NEXT: [[DONE:%.*]] = icmp eq i64 [[INDEX_NEXT]], 65536 -; HSW-NEXT: br i1 [[DONE]], label [[EXIT:%.*]], label [[VECTOR_BODY]] -; HSW: exit: -; HSW-NEXT: ret void -; -; BASE-LABEL: maxArray: -; BASE: # %bb.0: # %entry -; BASE-NEXT: movq $-524288, %rax # imm = 0xFFF80000 -; BASE-NEXT: .p2align 4, 0x90 -; BASE-NEXT: .LBB0_1: # %vector.body -; BASE-NEXT: # =>This Inner Loop Header: Depth=1 -; BASE-NEXT: movupd 524288(%rdi,%rax), %xmm0 -; BASE-NEXT: movupd 524288(%rsi,%rax), %xmm1 -; BASE-NEXT: maxpd %xmm0, %xmm1 -; BASE-NEXT: movupd %xmm1, 524288(%rdi,%rax) -; BASE-NEXT: addq $16, %rax -; BASE-NEXT: jne .LBB0_1 -; BASE-NEXT: # %bb.2: # %exit -; BASE-NEXT: retq -; FUSE-LABEL: maxArray: -; FUSE: # %bb.0: # %entry -; FUSE-NEXT: xorl %eax, %eax -; FUSE-NEXT: .p2align 4, 0x90 -; FUSE-NEXT: .LBB0_1: # %vector.body -; FUSE-NEXT: # =>This Inner Loop Header: Depth=1 -; FUSE-NEXT: movupd (%rdi,%rax,8), %xmm0 -; FUSE-NEXT: movupd (%rsi,%rax,8), %xmm1 -; FUSE-NEXT: maxpd %xmm0, %xmm1 -; FUSE-NEXT: movupd %xmm1, (%rdi,%rax,8) -; FUSE-NEXT: addq $2, %rax -; FUSE-NEXT: cmpq $65536, %rax # imm = 0x10000 -; FUSE-NEXT: jne .LBB0_1 -; FUSE-NEXT: # %bb.2: # %exit -; FUSE-NEXT: retq -entry: - br label %vector.body - -vector.body: - %index = phi i64 [ 0, %entry ], [ %index.next, %vector.body ] - %gepx = getelementptr inbounds double, double* %x, i64 %index - %gepy = getelementptr inbounds double, double* %y, i64 %index - %xptr = bitcast double* %gepx to <2 x double>* - %yptr = bitcast double* %gepy to <2 x double>* - %xval = load <2 x double>, <2 x double>* %xptr, align 8 - %yval = load <2 x double>, <2 x double>* %yptr, align 8 - %cmp = fcmp ogt <2 x double> %yval, %xval - %max = select <2 x i1> %cmp, <2 x double> %yval, <2 x double> %xval - %xptr_again = bitcast double* %gepx to <2 x double>* - store <2 x double> %max, <2 x double>* %xptr_again, align 8 - %index.next = add i64 %index, 2 - %done = icmp eq i64 %index.next, 65536 - br i1 %done, label %exit, label %vector.body - -exit: - ret void -} - |
