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| ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 \
; RUN: | FileCheck -check-prefix=CHECK -check-prefix=CHECK-SCALAR %s
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z14 \
; RUN: | FileCheck -check-prefix=CHECK -check-prefix=CHECK-VECTOR %s
declare float @llvm.experimental.constrained.fma.f32(float %f1, float %f2, float %f3, metadata, metadata)
define float @f1(float %f1, float %f2, float %acc) #0 {
; CHECK-LABEL: f1:
; CHECK-SCALAR: msebr %f4, %f0, %f2
; CHECK-SCALAR: ler %f0, %f4
; CHECK-VECTOR: wfmssb %f0, %f0, %f2, %f4
; CHECK: br %r14
%negacc = fsub float -0.0, %acc
%res = call float @llvm.experimental.constrained.fma.f32 (
float %f1, float %f2, float %negacc,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret float %res
}
define float @f2(float %f1, float *%ptr, float %acc) #0 {
; CHECK-LABEL: f2:
; CHECK: mseb %f2, %f0, 0(%r2)
; CHECK-SCALAR: ler %f0, %f2
; CHECK-VECTOR: ldr %f0, %f2
; CHECK: br %r14
%f2 = load float, float *%ptr
%negacc = fsub float -0.0, %acc
%res = call float @llvm.experimental.constrained.fma.f32 (
float %f1, float %f2, float %negacc,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret float %res
}
define float @f3(float %f1, float *%base, float %acc) #0 {
; CHECK-LABEL: f3:
; CHECK: mseb %f2, %f0, 4092(%r2)
; CHECK-SCALAR: ler %f0, %f2
; CHECK-VECTOR: ldr %f0, %f2
; CHECK: br %r14
%ptr = getelementptr float, float *%base, i64 1023
%f2 = load float, float *%ptr
%negacc = fsub float -0.0, %acc
%res = call float @llvm.experimental.constrained.fma.f32 (
float %f1, float %f2, float %negacc,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret float %res
}
define float @f4(float %f1, float *%base, float %acc) #0 {
; The important thing here is that we don't generate an out-of-range
; displacement. Other sequences besides this one would be OK.
;
; CHECK-LABEL: f4:
; CHECK: aghi %r2, 4096
; CHECK: mseb %f2, %f0, 0(%r2)
; CHECK-SCALAR: ler %f0, %f2
; CHECK-VECTOR: ldr %f0, %f2
; CHECK: br %r14
%ptr = getelementptr float, float *%base, i64 1024
%f2 = load float, float *%ptr
%negacc = fsub float -0.0, %acc
%res = call float @llvm.experimental.constrained.fma.f32 (
float %f1, float %f2, float %negacc,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret float %res
}
define float @f5(float %f1, float *%base, float %acc) #0 {
; Here too the important thing is that we don't generate an out-of-range
; displacement. Other sequences besides this one would be OK.
;
; CHECK-LABEL: f5:
; CHECK: aghi %r2, -4
; CHECK: mseb %f2, %f0, 0(%r2)
; CHECK-SCALAR: ler %f0, %f2
; CHECK-VECTOR: ldr %f0, %f2
; CHECK: br %r14
%ptr = getelementptr float, float *%base, i64 -1
%f2 = load float, float *%ptr
%negacc = fsub float -0.0, %acc
%res = call float @llvm.experimental.constrained.fma.f32 (
float %f1, float %f2, float %negacc,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret float %res
}
define float @f6(float %f1, float *%base, i64 %index, float %acc) #0 {
; CHECK-LABEL: f6:
; CHECK: sllg %r1, %r3, 2
; CHECK: mseb %f2, %f0, 0(%r1,%r2)
; CHECK-SCALAR: ler %f0, %f2
; CHECK-VECTOR: ldr %f0, %f2
; CHECK: br %r14
%ptr = getelementptr float, float *%base, i64 %index
%f2 = load float, float *%ptr
%negacc = fsub float -0.0, %acc
%res = call float @llvm.experimental.constrained.fma.f32 (
float %f1, float %f2, float %negacc,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret float %res
}
define float @f7(float %f1, float *%base, i64 %index, float %acc) #0 {
; CHECK-LABEL: f7:
; CHECK: sllg %r1, %r3, 2
; CHECK: mseb %f2, %f0, 4092({{%r1,%r2|%r2,%r1}})
; CHECK-SCALAR: ler %f0, %f2
; CHECK-VECTOR: ldr %f0, %f2
; CHECK: br %r14
%index2 = add i64 %index, 1023
%ptr = getelementptr float, float *%base, i64 %index2
%f2 = load float, float *%ptr
%negacc = fsub float -0.0, %acc
%res = call float @llvm.experimental.constrained.fma.f32 (
float %f1, float %f2, float %negacc,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret float %res
}
define float @f8(float %f1, float *%base, i64 %index, float %acc) #0 {
; CHECK-LABEL: f8:
; CHECK: sllg %r1, %r3, 2
; CHECK: lay %r1, 4096({{%r1,%r2|%r2,%r1}})
; CHECK: mseb %f2, %f0, 0(%r1)
; CHECK-SCALAR: ler %f0, %f2
; CHECK-VECTOR: ldr %f0, %f2
; CHECK: br %r14
%index2 = add i64 %index, 1024
%ptr = getelementptr float, float *%base, i64 %index2
%f2 = load float, float *%ptr
%negacc = fsub float -0.0, %acc
%res = call float @llvm.experimental.constrained.fma.f32 (
float %f1, float %f2, float %negacc,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret float %res
}
attributes #0 = { strictfp }
|