e478a22d54
This put the onus on the caller to ensure the result type is big enough. In the unlikely event a cropped result is required then explicitly truncate a safe value.
94 lines
5.0 KiB
LLVM
94 lines
5.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
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; RUN: opt < %s -passes=loop-vectorize -mtriple riscv64 -mattr=+v -S | FileCheck %s -check-prefix=NO-ZVFHMIN
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; RUN: opt < %s -passes=loop-vectorize -mtriple riscv64 -mattr=+v,+zvfhmin -S | FileCheck %s -check-prefix=ZVFHMIN
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define void @fadd(ptr noalias %a, ptr noalias %b, i64 %n) {
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; NO-ZVFHMIN-LABEL: define void @fadd(
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; NO-ZVFHMIN-SAME: ptr noalias [[A:%.*]], ptr noalias [[B:%.*]], i64 [[N:%.*]]) #[[ATTR0:[0-9]+]] {
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; NO-ZVFHMIN-NEXT: [[ENTRY:.*]]:
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; NO-ZVFHMIN-NEXT: br label %[[LOOP:.*]]
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; NO-ZVFHMIN: [[LOOP]]:
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; NO-ZVFHMIN-NEXT: [[I:%.*]] = phi i64 [ 0, %[[ENTRY]] ], [ [[I_NEXT:%.*]], %[[LOOP]] ]
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; NO-ZVFHMIN-NEXT: [[A_GEP:%.*]] = getelementptr half, ptr [[A]], i64 [[I]]
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; NO-ZVFHMIN-NEXT: [[B_GEP:%.*]] = getelementptr half, ptr [[B]], i64 [[I]]
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; NO-ZVFHMIN-NEXT: [[X:%.*]] = load half, ptr [[A_GEP]], align 2
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; NO-ZVFHMIN-NEXT: [[Y:%.*]] = load half, ptr [[B_GEP]], align 2
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; NO-ZVFHMIN-NEXT: [[Z:%.*]] = fadd half [[X]], [[Y]]
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; NO-ZVFHMIN-NEXT: store half [[Z]], ptr [[A_GEP]], align 2
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; NO-ZVFHMIN-NEXT: [[I_NEXT]] = add i64 [[I]], 1
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; NO-ZVFHMIN-NEXT: [[DONE:%.*]] = icmp eq i64 [[I_NEXT]], [[N]]
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; NO-ZVFHMIN-NEXT: br i1 [[DONE]], label %[[EXIT:.*]], label %[[LOOP]]
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; NO-ZVFHMIN: [[EXIT]]:
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; NO-ZVFHMIN-NEXT: ret void
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;
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; ZVFHMIN-LABEL: define void @fadd(
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; ZVFHMIN-SAME: ptr noalias [[A:%.*]], ptr noalias [[B:%.*]], i64 [[N:%.*]]) #[[ATTR0:[0-9]+]] {
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; ZVFHMIN-NEXT: [[ENTRY:.*]]:
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; ZVFHMIN-NEXT: [[TMP7:%.*]] = call i64 @llvm.vscale.i64()
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; ZVFHMIN-NEXT: [[TMP8:%.*]] = mul nuw i64 [[TMP7]], 8
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; ZVFHMIN-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], [[TMP8]]
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; ZVFHMIN-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
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; ZVFHMIN: [[VECTOR_PH]]:
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; ZVFHMIN-NEXT: [[TMP9:%.*]] = call i64 @llvm.vscale.i64()
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; ZVFHMIN-NEXT: [[TMP10:%.*]] = mul nuw i64 [[TMP9]], 8
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; ZVFHMIN-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], [[TMP10]]
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; ZVFHMIN-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
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; ZVFHMIN-NEXT: [[TMP12:%.*]] = call i64 @llvm.vscale.i64()
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; ZVFHMIN-NEXT: [[TMP5:%.*]] = mul nuw i64 [[TMP12]], 8
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; ZVFHMIN-NEXT: br label %[[VECTOR_BODY:.*]]
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; ZVFHMIN: [[VECTOR_BODY]]:
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; ZVFHMIN-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
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; ZVFHMIN-NEXT: [[TMP1:%.*]] = getelementptr half, ptr [[A]], i64 [[INDEX]]
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; ZVFHMIN-NEXT: [[TMP2:%.*]] = getelementptr half, ptr [[B]], i64 [[INDEX]]
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; ZVFHMIN-NEXT: [[TMP3:%.*]] = getelementptr half, ptr [[TMP1]], i32 0
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; ZVFHMIN-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 8 x half>, ptr [[TMP3]], align 2
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; ZVFHMIN-NEXT: [[TMP4:%.*]] = getelementptr half, ptr [[TMP2]], i32 0
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; ZVFHMIN-NEXT: [[WIDE_LOAD1:%.*]] = load <vscale x 8 x half>, ptr [[TMP4]], align 2
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; ZVFHMIN-NEXT: [[TMP11:%.*]] = fadd <vscale x 8 x half> [[WIDE_LOAD]], [[WIDE_LOAD1]]
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; ZVFHMIN-NEXT: store <vscale x 8 x half> [[TMP11]], ptr [[TMP3]], align 2
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; ZVFHMIN-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]]
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; ZVFHMIN-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
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; ZVFHMIN-NEXT: br i1 [[TMP6]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
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; ZVFHMIN: [[MIDDLE_BLOCK]]:
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; ZVFHMIN-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
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; ZVFHMIN-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
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; ZVFHMIN: [[SCALAR_PH]]:
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; ZVFHMIN-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
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; ZVFHMIN-NEXT: br label %[[LOOP:.*]]
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; ZVFHMIN: [[LOOP]]:
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; ZVFHMIN-NEXT: [[I:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[I_NEXT:%.*]], %[[LOOP]] ]
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; ZVFHMIN-NEXT: [[A_GEP:%.*]] = getelementptr half, ptr [[A]], i64 [[I]]
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; ZVFHMIN-NEXT: [[B_GEP:%.*]] = getelementptr half, ptr [[B]], i64 [[I]]
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; ZVFHMIN-NEXT: [[X:%.*]] = load half, ptr [[A_GEP]], align 2
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; ZVFHMIN-NEXT: [[Y:%.*]] = load half, ptr [[B_GEP]], align 2
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; ZVFHMIN-NEXT: [[Z:%.*]] = fadd half [[X]], [[Y]]
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; ZVFHMIN-NEXT: store half [[Z]], ptr [[A_GEP]], align 2
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; ZVFHMIN-NEXT: [[I_NEXT]] = add i64 [[I]], 1
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; ZVFHMIN-NEXT: [[DONE:%.*]] = icmp eq i64 [[I_NEXT]], [[N]]
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; ZVFHMIN-NEXT: br i1 [[DONE]], label %[[EXIT]], label %[[LOOP]], !llvm.loop [[LOOP3:![0-9]+]]
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; ZVFHMIN: [[EXIT]]:
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; ZVFHMIN-NEXT: ret void
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;
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entry:
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br label %loop
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loop:
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%i = phi i64 [0, %entry], [%i.next, %loop]
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%a.gep = getelementptr half, ptr %a, i64 %i
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%b.gep = getelementptr half, ptr %b, i64 %i
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%x = load half, ptr %a.gep
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%y = load half, ptr %b.gep
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%z = fadd half %x, %y
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store half %z, ptr %a.gep
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%i.next = add i64 %i, 1
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%done = icmp eq i64 %i.next, %n
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br i1 %done, label %exit, label %loop
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exit:
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ret void
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}
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;.
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; ZVFHMIN: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]], [[META2:![0-9]+]]}
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; ZVFHMIN: [[META1]] = !{!"llvm.loop.isvectorized", i32 1}
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; ZVFHMIN: [[META2]] = !{!"llvm.loop.unroll.runtime.disable"}
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; ZVFHMIN: [[LOOP3]] = distinct !{[[LOOP3]], [[META2]], [[META1]]}
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;.
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