408 lines
17 KiB
LLVM
408 lines
17 KiB
LLVM
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; RUN: opt -mtriple=thumbv8.1m.main-none-none-eabi -hardware-loops %s -S -o - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-MAIN
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; RUN: opt -mtriple=thumbv8.1m.main-none-none-eabi -mattr=+fullfp16 -hardware-loops %s -S -o - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-FP
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; RUN: opt -mtriple=thumbv8.1m.main-none-none-eabi -mattr=+fp-armv8,+fullfp16 -hardware-loops %s -S -o - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-FP64
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; RUN: opt -mtriple=thumbv8.1m.main-none-none-eabi -mattr=+mve -hardware-loops %s -S -o - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-MVE
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; RUN: opt -mtriple=thumbv8.1m.main-none-none-eabi -mattr=+mve.fp -hardware-loops %s -S -o - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-MVEFP
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; RUN: opt -mtriple=thumbv8.1m.main-none-none-eabi -hardware-loops -disable-arm-loloops=true %s -S -o - | FileCheck %s --check-prefix=DISABLED
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; DISABLED-NOT: call i32 @llvm.loop.decrement
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; CHECK-LABEL: skip_call
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; CHECK-NOT: call i32 @llvm.start.loop.iterations
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; CHECK-NOT: call i32 @llvm.loop.decrement
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define i32 @skip_call(i32 %n) {
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entry:
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%cmp6 = icmp eq i32 %n, 0
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br i1 %cmp6, label %while.end, label %while.body.preheader
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while.body.preheader:
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br label %while.body
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while.body:
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%i.08 = phi i32 [ %inc1, %while.body ], [ 0, %while.body.preheader ]
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%res.07 = phi i32 [ %add, %while.body ], [ 0, %while.body.preheader ]
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%call = tail call i32 bitcast (i32 (...)* @bar to i32 ()*)() #2
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%add = add nsw i32 %call, %res.07
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%inc1 = add nuw i32 %i.08, 1
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%exitcond = icmp eq i32 %inc1, %n
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br i1 %exitcond, label %while.end.loopexit, label %while.body
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while.end.loopexit:
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br label %while.end
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while.end:
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%res.0.lcssa = phi i32 [ 0, %entry ], [ %add, %while.end.loopexit ]
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ret i32 %res.0.lcssa
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}
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; CHECK-LABEL: test_target_specific
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; CHECK: [[X:%[^ ]+]] = call i32 @llvm.start.loop.iterations.i32(i32 50)
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; CHECK: [[COUNT:%[^ ]+]] = phi i32 [ [[X]], %entry ], [ [[LOOP_DEC:%[^ ]+]], %loop ]
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; CHECK: [[LOOP_DEC]] = call i32 @llvm.loop.decrement.reg.i32(i32 [[COUNT]], i32 1)
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; CHECK: [[CMP:%[^ ]+]] = icmp ne i32 [[LOOP_DEC]], 0
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; CHECK: br i1 [[CMP]], label %loop, label %exit
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define i32 @test_target_specific(i32* %a, i32* %b) {
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entry:
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br label %loop
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loop:
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%acc = phi i32 [ 0, %entry ], [ %res, %loop ]
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%count = phi i32 [ 0, %entry ], [ %count.next, %loop ]
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%addr.a = getelementptr i32, i32* %a, i32 %count
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%addr.b = getelementptr i32, i32* %b, i32 %count
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%load.a = load i32, i32* %addr.a
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%load.b = load i32, i32* %addr.b
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%res = call i32 @llvm.arm.smlad(i32 %load.a, i32 %load.b, i32 %acc)
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%count.next = add nuw i32 %count, 2
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%cmp = icmp ne i32 %count.next, 100
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br i1 %cmp, label %loop, label %exit
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exit:
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ret i32 %res
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}
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; CHECK-LABEL: test_fabs_f16
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; CHECK-MAIN-NOT: call i32 @llvm.start.loop.iterations
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; CHECK-MVE-NOT: call i32 @llvm.start.loop.iterations
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; CHECK-FP: call i32 @llvm.start.loop.iterations.i32(i32 100)
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; CHECK-MVEFP: call i32 @llvm.start.loop.iterations.i32(i32 100)
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define void @test_fabs_f16(half* %a, half* %b) {
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entry:
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br label %loop
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loop:
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%count = phi i32 [ 0, %entry ], [ %count.next, %loop ]
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%addr.a = getelementptr half, half* %a, i32 %count
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%load.a = load half, half* %addr.a
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%abs = call half @llvm.fabs.f16(half %load.a)
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%addr.b = getelementptr half, half* %b, i32 %count
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store half %abs, half *%addr.b
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%count.next = add nuw i32 %count, 1
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%cmp = icmp ne i32 %count.next, 100
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br i1 %cmp, label %loop, label %exit
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exit:
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ret void
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}
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; CHECK-LABEL: test_fabs
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; CHECK-MAIN-NOT: call i32 @llvm.start.loop.iterations
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; CHECK-MVE-NOT: call i32 @llvm.start.loop.iterations
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; CHECK-FP: call i32 @llvm.start.loop.iterations.i32(i32 100)
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; CHECK-MVEFP: call i32 @llvm.start.loop.iterations.i32(i32 100)
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define float @test_fabs(float* %a) {
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entry:
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br label %loop
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loop:
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%acc = phi float [ 0.0, %entry ], [ %res, %loop ]
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%count = phi i32 [ 0, %entry ], [ %count.next, %loop ]
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%addr.a = getelementptr float, float* %a, i32 %count
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%load.a = load float, float* %addr.a
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%abs = call float @llvm.fabs.f32(float %load.a)
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%res = fadd float %abs, %acc
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%count.next = add nuw i32 %count, 1
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%cmp = icmp ne i32 %count.next, 100
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br i1 %cmp, label %loop, label %exit
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exit:
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ret float %res
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}
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; CHECK-LABEL: test_fabs_64
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; CHECK-MAIN-NOT: call i32 @llvm.start.loop.iterations
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; CHECK-MVE-NOT: call i32 @llvm.start.loop.iterations
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; CHECK-FP-NOT: call i32 @llvm.start.loop.iterations.i32(i32 100)
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; CHECK-FP64: call i32 @llvm.start.loop.iterations.i32(i32 100)
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; CHECK-MVEFP-NOT: call i32 @llvm.start.loop.iterations.i32(i32 100)
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define void @test_fabs_64(double* %a, double* %b) {
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entry:
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br label %loop
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loop:
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%count = phi i32 [ 0, %entry ], [ %count.next, %loop ]
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%addr.a = getelementptr double, double* %a, i32 %count
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%load.a = load double, double* %addr.a
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%abs = call double @llvm.fabs.f64(double %load.a)
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%addr.b = getelementptr double, double* %b, i32 %count
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store double %abs, double *%addr.b
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%count.next = add nuw i32 %count, 1
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%cmp = icmp ne i32 %count.next, 100
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br i1 %cmp, label %loop, label %exit
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exit:
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ret void
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}
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; CHECK-LABEL: test_fabs_vec
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; CHECK-MVE-NOT: call i32 @llvm.start.loop.iterations
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; CHECK-MVEFP: [[X:%[^ ]+]] = call i32 @llvm.start.loop.iterations.i32(i32 100)
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; CHECK-MVEFP: [[COUNT:%[^ ]+]] = phi i32 [ [[X]], %entry ], [ [[LOOP_DEC:%[^ ]+]], %loop ]
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; CHECK-MVEFP: [[LOOP_DEC]] = call i32 @llvm.loop.decrement.reg.i32(i32 [[COUNT]], i32 1)
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; CHECK-MVEFP: [[CMP:%[^ ]+]] = icmp ne i32 [[LOOP_DEC]], 0
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; CHECK-MVEFP: br i1 [[CMP]], label %loop, label %exit
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define <4 x float> @test_fabs_vec(<4 x float>* %a) {
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entry:
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br label %loop
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loop:
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%acc = phi <4 x float> [ zeroinitializer, %entry ], [ %res, %loop ]
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%count = phi i32 [ 0, %entry ], [ %count.next, %loop ]
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%addr.a = getelementptr <4 x float>, <4 x float>* %a, i32 %count
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%load.a = load <4 x float>, <4 x float>* %addr.a
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%abs = call <4 x float> @llvm.fabs.v4f32(<4 x float> %load.a)
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%res = fadd <4 x float> %abs, %acc
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%count.next = add nuw i32 %count, 1
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%cmp = icmp ne i32 %count.next, 100
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br i1 %cmp, label %loop, label %exit
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exit:
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ret <4 x float> %res
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}
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; CHECK-LABEL: test_log
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; CHECK-NOT: call i32 @llvm.start.loop.iterations
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; CHECK-NOT: llvm.loop.decrement
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define float @test_log(float* %a) {
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entry:
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br label %loop
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loop:
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%acc = phi float [ 0.0, %entry ], [ %res, %loop ]
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%count = phi i32 [ 0, %entry ], [ %count.next, %loop ]
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%addr.a = getelementptr float, float* %a, i32 %count
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%load.a = load float, float* %addr.a
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%abs = call float @llvm.log.f32(float %load.a)
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%res = fadd float %abs, %acc
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%count.next = add nuw i32 %count, 1
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%cmp = icmp ne i32 %count.next, 100
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br i1 %cmp, label %loop, label %exit
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exit:
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ret float %res
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}
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; CHECK-LABEL: test_sqrt_16
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; CHECK-MAIN-NOT: call i32 @llvm.start.loop.iterations
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; CHECK-MVE-NOT: call i32 @llvm.start.loop.iterations
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; CHECK-FP: call i32 @llvm.start.loop.iterations.i32(i32 100)
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; CHECK-MVEFP: call i32 @llvm.start.loop.iterations.i32(i32 100)
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; CHECK-FP64: call i32 @llvm.start.loop.iterations.i32(i32 100)
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define void @test_sqrt_16(half* %a, half* %b) {
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entry:
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br label %loop
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loop:
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%count = phi i32 [ 0, %entry ], [ %count.next, %loop ]
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%addr.a = getelementptr half, half* %a, i32 %count
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%load.a = load half, half* %addr.a
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%sqrt = call half @llvm.sqrt.f16(half %load.a)
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%addr.b = getelementptr half, half* %b, i32 %count
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store half %sqrt, half *%addr.b
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%count.next = add nuw i32 %count, 1
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%cmp = icmp ne i32 %count.next, 100
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br i1 %cmp, label %loop, label %exit
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exit:
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ret void
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}
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; CHECK-LABEL: test_sqrt
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; CHECK-MAIN-NOT: call i32 @llvm.start.loop.iterations
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; CHECK-MVE-NOT: call i32 @llvm.start.loop.iterations
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; CHECK-FP: call i32 @llvm.start.loop.iterations
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; CHECK-MVEFP: [[X:%[^ ]+]] = call i32 @llvm.start.loop.iterations.i32(i32 100)
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; CHECK-MVEFP: [[COUNT:%[^ ]+]] = phi i32 [ [[X]], %entry ], [ [[LOOP_DEC:%[^ ]+]], %loop ]
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; CHECK-MVEFP: [[LOOP_DEC]] = call i32 @llvm.loop.decrement.reg.i32(i32 [[COUNT]], i32 1)
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; CHECK-MVEFP: [[CMP:%[^ ]+]] = icmp ne i32 [[LOOP_DEC]], 0
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; CHECK-MVEFP: br i1 [[CMP]], label %loop, label %exit
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define void @test_sqrt(float* %a, float* %b) {
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entry:
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br label %loop
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loop:
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%count = phi i32 [ 0, %entry ], [ %count.next, %loop ]
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%addr.a = getelementptr float, float* %a, i32 %count
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%load.a = load float, float* %addr.a
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%sqrt = call float @llvm.sqrt.f32(float %load.a)
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%addr.b = getelementptr float, float* %b, i32 %count
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store float %sqrt, float* %addr.b
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%count.next = add nuw i32 %count, 1
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%cmp = icmp ne i32 %count.next, 100
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br i1 %cmp, label %loop, label %exit
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exit:
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ret void
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}
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; CHECK-LABEL: test_sqrt_64
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; CHECK-MAIN-NOT: call i32 @llvm.start.loop.iterations
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; CHECK-MVE-NOT: call i32 @llvm.start.loop.iterations
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; CHECK-FP-NOT: call i32 @llvm.start.loop.iterations.i32(i32 100)
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; CHECK-MVEFP-NOT: call i32 @llvm.start.loop.iterations.i32(i32 100)
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; CHECK-FP64: call i32 @llvm.start.loop.iterations.i32(i32 100)
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define void @test_sqrt_64(double* %a, double* %b) {
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entry:
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br label %loop
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loop:
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%count = phi i32 [ 0, %entry ], [ %count.next, %loop ]
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%addr.a = getelementptr double, double* %a, i32 %count
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%load.a = load double, double* %addr.a
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%sqrt = call double @llvm.sqrt.f64(double %load.a)
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%addr.b = getelementptr double, double* %b, i32 %count
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store double %sqrt, double *%addr.b
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%count.next = add nuw i32 %count, 1
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%cmp = icmp ne i32 %count.next, 100
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br i1 %cmp, label %loop, label %exit
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exit:
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ret void
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}
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; CHECK-LABEL: test_sqrt_vec
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; CHECK-MAIN-NOT: call i32 @llvm.start.loop.iterations
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; CHECK-MVE-NOT: call i32 @llvm.start.loop.iterations
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; CHECK-FP: call i32 @llvm.start.loop.iterations.i32(i32 100)
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; CHECK-MVEFP: call i32 @llvm.start.loop.iterations.i32(i32 100)
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define void @test_sqrt_vec(<4 x float>* %a, <4 x float>* %b) {
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entry:
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br label %loop
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loop:
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%count = phi i32 [ 0, %entry ], [ %count.next, %loop ]
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%addr.a = getelementptr <4 x float>, <4 x float>* %a, i32 %count
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%load.a = load <4 x float>, <4 x float>* %addr.a
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%sqrt = call <4 x float> @llvm.sqrt.v4f32(<4 x float> %load.a)
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%addr.b = getelementptr <4 x float>, <4 x float>* %b, i32 %count
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store <4 x float> %sqrt, <4 x float>* %addr.b
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%count.next = add nuw i32 %count, 1
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%cmp = icmp ne i32 %count.next, 100
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br i1 %cmp, label %loop, label %exit
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exit:
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ret void
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}
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; CHECK-LABEL: test_overflow
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; CHECK: call i32 @llvm.start.loop.iterations
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define i32 @test_overflow(i32* %a, i32* %b) {
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entry:
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br label %loop
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loop:
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%acc = phi i32 [ 0, %entry ], [ %res, %loop ]
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%count = phi i32 [ 0, %entry ], [ %count.next, %loop ]
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%addr.a = getelementptr i32, i32* %a, i32 %count
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%addr.b = getelementptr i32, i32* %b, i32 %count
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%load.a = load i32, i32* %addr.a
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%load.b = load i32, i32* %addr.b
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%sadd = call {i32, i1} @llvm.sadd.with.overflow.i32(i32 %load.a, i32 %load.b)
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%res = extractvalue {i32, i1} %sadd, 0
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%count.next = add nuw i32 %count, 1
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%cmp = icmp ne i32 %count.next, 100
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br i1 %cmp, label %loop, label %exit
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exit:
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ret i32 %res
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}
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; TODO: We should be able to generate a qadd/sub
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; CHECK-LABEL: test_sat
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; CHECK: call i32 @llvm.start.loop.iterations.i32(i32 100)
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define i32 @test_sat(i32* %a, i32* %b) {
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entry:
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br label %loop
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loop:
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%acc = phi i32 [ 0, %entry ], [ %res, %loop ]
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%count = phi i32 [ 0, %entry ], [ %count.next, %loop ]
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%addr.a = getelementptr i32, i32* %a, i32 %count
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%addr.b = getelementptr i32, i32* %b, i32 %count
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%load.a = load i32, i32* %addr.a
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%load.b = load i32, i32* %addr.b
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%res = call i32 @llvm.sadd.sat.i32(i32 %load.a, i32 %load.b)
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%count.next = add nuw i32 %count, 1
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%cmp = icmp ne i32 %count.next, 100
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br i1 %cmp, label %loop, label %exit
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exit:
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ret i32 %res
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}
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; CHECK-LABEL: test_masked_i32
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; CHECK-NOT: call i32 @llvm.start.loop.iterations
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; CHECK-MVEFP: call i32 @llvm.start.loop.iterations
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; CHECK-MVE: [[X:%[^ ]+]] = call i32 @llvm.start.loop.iterations.i32(i32 100)
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; CHECK-MVE: [[COUNT:%[^ ]+]] = phi i32 [ [[X]], %entry ], [ [[LOOP_DEC:%[^ ]+]], %loop ]
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; CHECK-MVE: [[LOOP_DEC]] = call i32 @llvm.loop.decrement.reg.i32(i32 [[COUNT]], i32 1)
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; CHECK-MVE: [[CMP:%[^ ]+]] = icmp ne i32 [[LOOP_DEC]], 0
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; CHECK-MVE: br i1 [[CMP]], label %loop, label %exit
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|
define arm_aapcs_vfpcc void @test_masked_i32(<4 x i1> %mask, <4 x i32>* %a, <4 x i32>* %b, <4 x i32>* %c, <4 x i32> %passthru) {
|
||
|
entry:
|
||
|
br label %loop
|
||
|
loop:
|
||
|
%count = phi i32 [ 0, %entry ], [ %count.next, %loop ]
|
||
|
%addr.a = getelementptr <4 x i32>, <4 x i32>* %a, i32 %count
|
||
|
%addr.b = getelementptr <4 x i32>, <4 x i32>* %b, i32 %count
|
||
|
%addr.c = getelementptr <4 x i32>, <4 x i32>* %c, i32 %count
|
||
|
%load.a = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>* %addr.a, i32 4, <4 x i1> %mask, <4 x i32> %passthru)
|
||
|
%load.b = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>* %addr.b, i32 4, <4 x i1> %mask, <4 x i32> %passthru)
|
||
|
%res = add <4 x i32> %load.a, %load.b
|
||
|
call void @llvm.masked.store.v4i32.p0v4i32(<4 x i32> %res, <4 x i32>* %addr.c, i32 4, <4 x i1> %mask)
|
||
|
%count.next = add nuw i32 %count, 1
|
||
|
%cmp = icmp ne i32 %count.next, 100
|
||
|
br i1 %cmp, label %loop, label %exit
|
||
|
exit:
|
||
|
ret void
|
||
|
}
|
||
|
|
||
|
; CHECK-LABEL: test_masked_f32
|
||
|
; CHECK-NOT: call i32 @llvm.start.loop.iterations
|
||
|
; CHECK-MVEFP: call i32 @llvm.start.loop.iterations
|
||
|
; CHECK-MVE: [[X:%[^ ]+]] = call i32 @llvm.start.loop.iterations.i32(i32 100)
|
||
|
; CHECK-MVE: [[COUNT:%[^ ]+]] = phi i32 [ [[X]], %entry ], [ [[LOOP_DEC:%[^ ]+]], %loop ]
|
||
|
; CHECK-MVE: [[LOOP_DEC]] = call i32 @llvm.loop.decrement.reg.i32(i32 [[COUNT]], i32 1)
|
||
|
; CHECK-MVE: [[CMP:%[^ ]+]] = icmp ne i32 [[LOOP_DEC]], 0
|
||
|
; CHECK-MVE: br i1 [[CMP]], label %loop, label %exit
|
||
|
define arm_aapcs_vfpcc void @test_masked_f32(<4 x i1> %mask, <4 x float>* %a, <4 x float>* %b, <4 x float>* %c, <4 x float> %passthru) {
|
||
|
entry:
|
||
|
br label %loop
|
||
|
loop:
|
||
|
%count = phi i32 [ 0, %entry ], [ %count.next, %loop ]
|
||
|
%addr.a = getelementptr <4 x float>, <4 x float>* %a, i32 %count
|
||
|
%addr.b = getelementptr <4 x float>, <4 x float>* %b, i32 %count
|
||
|
%addr.c = getelementptr <4 x float>, <4 x float>* %c, i32 %count
|
||
|
%load.a = call <4 x float> @llvm.masked.load.v4f32.p0v4f32(<4 x float>* %addr.a, i32 4, <4 x i1> %mask, <4 x float> %passthru)
|
||
|
%load.b = call <4 x float> @llvm.masked.load.v4f32.p0v4f32(<4 x float>* %addr.b, i32 4, <4 x i1> %mask, <4 x float> %passthru)
|
||
|
%res = fadd <4 x float> %load.a, %load.b
|
||
|
call void @llvm.masked.store.v4f32.p0v4f32(<4 x float> %res, <4 x float>* %addr.c, i32 4, <4 x i1> %mask)
|
||
|
%count.next = add nuw i32 %count, 1
|
||
|
%cmp = icmp ne i32 %count.next, 100
|
||
|
br i1 %cmp, label %loop, label %exit
|
||
|
exit:
|
||
|
ret void
|
||
|
}
|
||
|
|
||
|
; CHECK-LABEL: test_gather_scatter
|
||
|
; CHECK-NOT: call i32 @llvm.start.loop.iterations
|
||
|
; CHECK-MVEFP: call i32 @llvm.start.loop.iterations
|
||
|
; CHECK-MVE: [[X:%[^ ]+]] = call i32 @llvm.start.loop.iterations.i32(i32 100)
|
||
|
; CHECK-MVE: [[COUNT:%[^ ]+]] = phi i32 [ [[X]], %entry ], [ [[LOOP_DEC:%[^ ]+]], %loop ]
|
||
|
; CHECK-MVE: [[LOOP_DEC]] = call i32 @llvm.loop.decrement.reg.i32(i32 [[COUNT]], i32 1)
|
||
|
; CHECK-MVE: [[CMP:%[^ ]+]] = icmp ne i32 [[LOOP_DEC]], 0
|
||
|
; CHECK-MVE: br i1 [[CMP]], label %loop, label %exit
|
||
|
define arm_aapcs_vfpcc void @test_gather_scatter(<4 x i1> %mask, <4 x float*> %a, <4 x float*> %b, <4 x float*> %c, <4 x float> %passthru) {
|
||
|
entry:
|
||
|
br label %loop
|
||
|
loop:
|
||
|
%count = phi i32 [ 0, %entry ], [ %count.next, %loop ]
|
||
|
%load.a = call <4 x float> @llvm.masked.gather.v4f32.p0v4f32(<4 x float*> %a, i32 4, <4 x i1> %mask, <4 x float> %passthru)
|
||
|
%load.b = call <4 x float> @llvm.masked.gather.v4f32.p0v4f32(<4 x float*> %b, i32 4, <4 x i1> %mask, <4 x float> %passthru)
|
||
|
%res = fadd <4 x float> %load.a, %load.b
|
||
|
call void @llvm.masked.scatter.v4f32.p0v4f32(<4 x float> %res, <4 x float*> %c, i32 4, <4 x i1> %mask)
|
||
|
%count.next = add nuw i32 %count, 1
|
||
|
%cmp = icmp ne i32 %count.next, 100
|
||
|
br i1 %cmp, label %loop, label %exit
|
||
|
exit:
|
||
|
ret void
|
||
|
}
|
||
|
|
||
|
declare i32 @bar(...) local_unnamed_addr #1
|
||
|
declare i32 @llvm.arm.smlad(i32, i32, i32)
|
||
|
declare half @llvm.fabs.f16(half)
|
||
|
declare float @llvm.fabs.f32(float)
|
||
|
declare double @llvm.fabs.f64(double)
|
||
|
declare float @llvm.log.f32(float)
|
||
|
declare <4 x float> @llvm.fabs.v4f32(<4 x float>)
|
||
|
declare half @llvm.sqrt.f16(half)
|
||
|
declare float @llvm.sqrt.f32(float)
|
||
|
declare double @llvm.sqrt.f64(double)
|
||
|
declare <4 x float> @llvm.sqrt.v4f32(<4 x float>)
|
||
|
declare i32 @llvm.sadd.sat.i32(i32, i32)
|
||
|
declare {i32, i1} @llvm.sadd.with.overflow.i32(i32, i32)
|
||
|
declare <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>*, i32, <4 x i1>, <4 x i32>)
|
||
|
declare void @llvm.masked.store.v4i32.p0v4i32(<4 x i32>, <4 x i32>*, i32, <4 x i1>)
|
||
|
declare <4 x float> @llvm.masked.load.v4f32.p0v4f32(<4 x float>*, i32, <4 x i1>, <4 x float>)
|
||
|
declare void @llvm.masked.store.v4f32.p0v4f32(<4 x float>, <4 x float>*, i32, <4 x i1>)
|
||
|
declare <4 x float> @llvm.masked.gather.v4f32.p0v4f32(<4 x float*>, i32, <4 x i1>, <4 x float>)
|
||
|
declare void @llvm.masked.scatter.v4f32.p0v4f32(<4 x float>, <4 x float*>, i32, <4 x i1>)
|