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llvm-mirror/test/CodeGen/ARM/vecreduce-fadd-legalization-strict.ll
Nikita Popov 261a4b21fb [CodeGen] Fix neutral value of vecreduce fadd in tests (NFC)
The neutral value is -0.0, not 0.0. This doesn't matter for "fast"
reductions due to nsz, but does matter for reassoc-only and seq
reductions.

Change tests to mostly use -0.0 where the neutral value was intended,
and add some additional test coverage in some places. Also update
LangRef to use the right value.
2020-10-29 21:26:14 +01:00

313 lines
10 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=arm-none-eabi -mattr=+neon | FileCheck %s --check-prefix=CHECK
declare half @llvm.vector.reduce.fadd.f16.v1f16(half, <1 x half>)
declare float @llvm.vector.reduce.fadd.f32.v1f32(float, <1 x float>)
declare double @llvm.vector.reduce.fadd.f64.v1f64(double, <1 x double>)
declare fp128 @llvm.vector.reduce.fadd.f128.v1f128(fp128, <1 x fp128>)
declare float @llvm.vector.reduce.fadd.f32.v3f32(float, <3 x float>)
declare float @llvm.vector.reduce.fadd.f32.v5f32(float, <5 x float>)
declare fp128 @llvm.vector.reduce.fadd.f128.v2f128(fp128, <2 x fp128>)
declare float @llvm.vector.reduce.fadd.f32.v16f32(float, <16 x float>)
define half @test_v1f16(<1 x half> %a, half %s) nounwind {
; CHECK-LABEL: test_v1f16:
; CHECK: @ %bb.0:
; CHECK-NEXT: .save {r4, r5, r11, lr}
; CHECK-NEXT: push {r4, r5, r11, lr}
; CHECK-NEXT: .vsave {d8}
; CHECK-NEXT: vpush {d8}
; CHECK-NEXT: mov r4, r0
; CHECK-NEXT: mov r0, r1
; CHECK-NEXT: bl __aeabi_h2f
; CHECK-NEXT: mov r5, r0
; CHECK-NEXT: mov r0, r4
; CHECK-NEXT: bl __aeabi_f2h
; CHECK-NEXT: vmov s16, r5
; CHECK-NEXT: bl __aeabi_h2f
; CHECK-NEXT: vmov s0, r0
; CHECK-NEXT: vadd.f32 s0, s16, s0
; CHECK-NEXT: vmov r0, s0
; CHECK-NEXT: bl __aeabi_f2h
; CHECK-NEXT: vpop {d8}
; CHECK-NEXT: pop {r4, r5, r11, lr}
; CHECK-NEXT: mov pc, lr
%b = call half @llvm.vector.reduce.fadd.f16.v1f16(half %s, <1 x half> %a)
ret half %b
}
define half @test_v1f16_neutral(<1 x half> %a) nounwind {
; CHECK-LABEL: test_v1f16_neutral:
; CHECK: @ %bb.0:
; CHECK-NEXT: .save {r11, lr}
; CHECK-NEXT: push {r11, lr}
; CHECK-NEXT: bl __aeabi_f2h
; CHECK-NEXT: mov r1, #255
; CHECK-NEXT: orr r1, r1, #65280
; CHECK-NEXT: and r0, r0, r1
; CHECK-NEXT: pop {r11, lr}
; CHECK-NEXT: mov pc, lr
%b = call half @llvm.vector.reduce.fadd.f16.v1f16(half -0.0, <1 x half> %a)
ret half %b
}
define float @test_v1f32(<1 x float> %a, float %s) nounwind {
; CHECK-LABEL: test_v1f32:
; CHECK: @ %bb.0:
; CHECK-NEXT: vmov s0, r0
; CHECK-NEXT: vmov s2, r1
; CHECK-NEXT: vadd.f32 s0, s2, s0
; CHECK-NEXT: vmov r0, s0
; CHECK-NEXT: mov pc, lr
%b = call float @llvm.vector.reduce.fadd.f32.v1f32(float %s, <1 x float> %a)
ret float %b
}
define float @test_v1f32_neutral(<1 x float> %a) nounwind {
; CHECK-LABEL: test_v1f32_neutral:
; CHECK: @ %bb.0:
; CHECK-NEXT: mov pc, lr
%b = call float @llvm.vector.reduce.fadd.f32.v1f32(float -0.0, <1 x float> %a)
ret float %b
}
define double @test_v1f64(<1 x double> %a, double %s) nounwind {
; CHECK-LABEL: test_v1f64:
; CHECK: @ %bb.0:
; CHECK-NEXT: vmov d16, r0, r1
; CHECK-NEXT: vmov d17, r2, r3
; CHECK-NEXT: vadd.f64 d16, d17, d16
; CHECK-NEXT: vmov r0, r1, d16
; CHECK-NEXT: mov pc, lr
%b = call double @llvm.vector.reduce.fadd.f64.v1f64(double %s, <1 x double> %a)
ret double %b
}
define double @test_v1f64_neutral(<1 x double> %a) nounwind {
; CHECK-LABEL: test_v1f64_neutral:
; CHECK: @ %bb.0:
; CHECK-NEXT: mov pc, lr
%b = call double @llvm.vector.reduce.fadd.f64.v1f64(double -0.0, <1 x double> %a)
ret double %b
}
define fp128 @test_v1f128(<1 x fp128> %a, fp128 %s) nounwind {
; CHECK-LABEL: test_v1f128:
; CHECK: @ %bb.0:
; CHECK-NEXT: .save {r4, r5, r11, lr}
; CHECK-NEXT: push {r4, r5, r11, lr}
; CHECK-NEXT: .pad #16
; CHECK-NEXT: sub sp, sp, #16
; CHECK-NEXT: ldr r12, [sp, #32]
; CHECK-NEXT: ldr lr, [sp, #36]
; CHECK-NEXT: ldr r4, [sp, #40]
; CHECK-NEXT: ldr r5, [sp, #44]
; CHECK-NEXT: stm sp, {r0, r1, r2, r3}
; CHECK-NEXT: mov r0, r12
; CHECK-NEXT: mov r1, lr
; CHECK-NEXT: mov r2, r4
; CHECK-NEXT: mov r3, r5
; CHECK-NEXT: bl __addtf3
; CHECK-NEXT: add sp, sp, #16
; CHECK-NEXT: pop {r4, r5, r11, lr}
; CHECK-NEXT: mov pc, lr
%b = call fp128 @llvm.vector.reduce.fadd.f128.v1f128(fp128 %s, <1 x fp128> %a)
ret fp128 %b
}
define fp128 @test_v1f128_neutral(<1 x fp128> %a) nounwind {
; CHECK-LABEL: test_v1f128_neutral:
; CHECK: @ %bb.0:
; CHECK-NEXT: mov pc, lr
%b = call fp128 @llvm.vector.reduce.fadd.f128.v1f128(fp128 0xL00000000000000008000000000000000, <1 x fp128> %a)
ret fp128 %b
}
define float @test_v3f32(<3 x float> %a, float %s) nounwind {
; CHECK-LABEL: test_v3f32:
; CHECK: @ %bb.0:
; CHECK-NEXT: vmov d3, r2, r3
; CHECK-NEXT: vldr s0, [sp]
; CHECK-NEXT: vmov d2, r0, r1
; CHECK-NEXT: vadd.f32 s0, s0, s4
; CHECK-NEXT: vadd.f32 s0, s0, s5
; CHECK-NEXT: vadd.f32 s0, s0, s6
; CHECK-NEXT: vmov r0, s0
; CHECK-NEXT: mov pc, lr
%b = call float @llvm.vector.reduce.fadd.f32.v3f32(float %s, <3 x float> %a)
ret float %b
}
define float @test_v3f32_neutral(<3 x float> %a) nounwind {
; CHECK-LABEL: test_v3f32_neutral:
; CHECK: @ %bb.0:
; CHECK-NEXT: vmov d1, r2, r3
; CHECK-NEXT: vmov d0, r0, r1
; CHECK-NEXT: vadd.f32 s4, s0, s1
; CHECK-NEXT: vadd.f32 s0, s4, s2
; CHECK-NEXT: vmov r0, s0
; CHECK-NEXT: mov pc, lr
%b = call float @llvm.vector.reduce.fadd.f32.v3f32(float -0.0, <3 x float> %a)
ret float %b
}
define float @test_v5f32(<5 x float> %a, float %s) nounwind {
; CHECK-LABEL: test_v5f32:
; CHECK: @ %bb.0:
; CHECK-NEXT: vldr s0, [sp, #4]
; CHECK-NEXT: vmov s2, r0
; CHECK-NEXT: vadd.f32 s0, s0, s2
; CHECK-NEXT: vmov s2, r1
; CHECK-NEXT: vadd.f32 s0, s0, s2
; CHECK-NEXT: vmov s2, r2
; CHECK-NEXT: vadd.f32 s0, s0, s2
; CHECK-NEXT: vmov s2, r3
; CHECK-NEXT: vadd.f32 s0, s0, s2
; CHECK-NEXT: vldr s2, [sp]
; CHECK-NEXT: vadd.f32 s0, s0, s2
; CHECK-NEXT: vmov r0, s0
; CHECK-NEXT: mov pc, lr
%b = call float @llvm.vector.reduce.fadd.f32.v5f32(float %s, <5 x float> %a)
ret float %b
}
define float @test_v5f32_neutral(<5 x float> %a) nounwind {
; CHECK-LABEL: test_v5f32_neutral:
; CHECK: @ %bb.0:
; CHECK-NEXT: vmov s0, r1
; CHECK-NEXT: vmov s2, r0
; CHECK-NEXT: vadd.f32 s0, s2, s0
; CHECK-NEXT: vmov s2, r2
; CHECK-NEXT: vadd.f32 s0, s0, s2
; CHECK-NEXT: vmov s2, r3
; CHECK-NEXT: vadd.f32 s0, s0, s2
; CHECK-NEXT: vldr s2, [sp]
; CHECK-NEXT: vadd.f32 s0, s0, s2
; CHECK-NEXT: vmov r0, s0
; CHECK-NEXT: mov pc, lr
%b = call float @llvm.vector.reduce.fadd.f32.v5f32(float -0.0, <5 x float> %a)
ret float %b
}
define fp128 @test_v2f128(<2 x fp128> %a, fp128 %s) nounwind {
; CHECK-LABEL: test_v2f128:
; CHECK: @ %bb.0:
; CHECK-NEXT: .save {r4, r5, r11, lr}
; CHECK-NEXT: push {r4, r5, r11, lr}
; CHECK-NEXT: .pad #16
; CHECK-NEXT: sub sp, sp, #16
; CHECK-NEXT: ldr r12, [sp, #48]
; CHECK-NEXT: ldr lr, [sp, #52]
; CHECK-NEXT: ldr r4, [sp, #56]
; CHECK-NEXT: ldr r5, [sp, #60]
; CHECK-NEXT: stm sp, {r0, r1, r2, r3}
; CHECK-NEXT: mov r0, r12
; CHECK-NEXT: mov r1, lr
; CHECK-NEXT: mov r2, r4
; CHECK-NEXT: mov r3, r5
; CHECK-NEXT: bl __addtf3
; CHECK-NEXT: ldr r4, [sp, #32]
; CHECK-NEXT: ldr r5, [sp, #40]
; CHECK-NEXT: ldr lr, [sp, #44]
; CHECK-NEXT: ldr r12, [sp, #36]
; CHECK-NEXT: stm sp, {r4, r12}
; CHECK-NEXT: str r5, [sp, #8]
; CHECK-NEXT: str lr, [sp, #12]
; CHECK-NEXT: bl __addtf3
; CHECK-NEXT: add sp, sp, #16
; CHECK-NEXT: pop {r4, r5, r11, lr}
; CHECK-NEXT: mov pc, lr
%b = call fp128 @llvm.vector.reduce.fadd.f128.v2f128(fp128 %s, <2 x fp128> %a)
ret fp128 %b
}
define fp128 @test_v2f128_neutral(<2 x fp128> %a) nounwind {
; CHECK-LABEL: test_v2f128_neutral:
; CHECK: @ %bb.0:
; CHECK-NEXT: .save {r4, r5, r11, lr}
; CHECK-NEXT: push {r4, r5, r11, lr}
; CHECK-NEXT: .pad #16
; CHECK-NEXT: sub sp, sp, #16
; CHECK-NEXT: ldr r12, [sp, #36]
; CHECK-NEXT: ldr lr, [sp, #32]
; CHECK-NEXT: ldr r4, [sp, #40]
; CHECK-NEXT: ldr r5, [sp, #44]
; CHECK-NEXT: str lr, [sp]
; CHECK-NEXT: str r12, [sp, #4]
; CHECK-NEXT: str r4, [sp, #8]
; CHECK-NEXT: str r5, [sp, #12]
; CHECK-NEXT: bl __addtf3
; CHECK-NEXT: add sp, sp, #16
; CHECK-NEXT: pop {r4, r5, r11, lr}
; CHECK-NEXT: mov pc, lr
%b = call fp128 @llvm.vector.reduce.fadd.f128.v2f128(fp128 0xL00000000000000008000000000000000, <2 x fp128> %a)
ret fp128 %b
}
define float @test_v16f32(<16 x float> %a, float %s) nounwind {
; CHECK-LABEL: test_v16f32:
; CHECK: @ %bb.0:
; CHECK-NEXT: vmov d3, r2, r3
; CHECK-NEXT: vldr s0, [sp, #48]
; CHECK-NEXT: vmov d2, r0, r1
; CHECK-NEXT: mov r0, sp
; CHECK-NEXT: vadd.f32 s0, s0, s4
; CHECK-NEXT: vadd.f32 s0, s0, s5
; CHECK-NEXT: vadd.f32 s0, s0, s6
; CHECK-NEXT: vadd.f32 s0, s0, s7
; CHECK-NEXT: vld1.64 {d2, d3}, [r0]
; CHECK-NEXT: add r0, sp, #16
; CHECK-NEXT: vadd.f32 s0, s0, s4
; CHECK-NEXT: vadd.f32 s0, s0, s5
; CHECK-NEXT: vadd.f32 s0, s0, s6
; CHECK-NEXT: vadd.f32 s0, s0, s7
; CHECK-NEXT: vld1.64 {d2, d3}, [r0]
; CHECK-NEXT: add r0, sp, #32
; CHECK-NEXT: vadd.f32 s0, s0, s4
; CHECK-NEXT: vadd.f32 s0, s0, s5
; CHECK-NEXT: vadd.f32 s0, s0, s6
; CHECK-NEXT: vadd.f32 s0, s0, s7
; CHECK-NEXT: vld1.64 {d2, d3}, [r0]
; CHECK-NEXT: vadd.f32 s0, s0, s4
; CHECK-NEXT: vadd.f32 s0, s0, s5
; CHECK-NEXT: vadd.f32 s0, s0, s6
; CHECK-NEXT: vadd.f32 s0, s0, s7
; CHECK-NEXT: vmov r0, s0
; CHECK-NEXT: mov pc, lr
%b = call float @llvm.vector.reduce.fadd.f32.v16f32(float %s, <16 x float> %a)
ret float %b
}
define float @test_v16f32_neutral(<16 x float> %a) nounwind {
; CHECK-LABEL: test_v16f32_neutral:
; CHECK: @ %bb.0:
; CHECK-NEXT: vmov d1, r2, r3
; CHECK-NEXT: vmov d0, r0, r1
; CHECK-NEXT: mov r0, sp
; CHECK-NEXT: vadd.f32 s4, s0, s1
; CHECK-NEXT: vadd.f32 s4, s4, s2
; CHECK-NEXT: vadd.f32 s0, s4, s3
; CHECK-NEXT: vld1.64 {d2, d3}, [r0]
; CHECK-NEXT: add r0, sp, #16
; CHECK-NEXT: vadd.f32 s0, s0, s4
; CHECK-NEXT: vadd.f32 s0, s0, s5
; CHECK-NEXT: vadd.f32 s0, s0, s6
; CHECK-NEXT: vadd.f32 s0, s0, s7
; CHECK-NEXT: vld1.64 {d2, d3}, [r0]
; CHECK-NEXT: add r0, sp, #32
; CHECK-NEXT: vadd.f32 s0, s0, s4
; CHECK-NEXT: vadd.f32 s0, s0, s5
; CHECK-NEXT: vadd.f32 s0, s0, s6
; CHECK-NEXT: vadd.f32 s0, s0, s7
; CHECK-NEXT: vld1.64 {d2, d3}, [r0]
; CHECK-NEXT: vadd.f32 s0, s0, s4
; CHECK-NEXT: vadd.f32 s0, s0, s5
; CHECK-NEXT: vadd.f32 s0, s0, s6
; CHECK-NEXT: vadd.f32 s0, s0, s7
; CHECK-NEXT: vmov r0, s0
; CHECK-NEXT: mov pc, lr
%b = call float @llvm.vector.reduce.fadd.f32.v16f32(float -0.0, <16 x float> %a)
ret float %b
}