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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=z13 \
; RUN: | FileCheck -check-prefix=CHECK -check-prefix=CHECK-VECTOR %s
declare double @llvm.experimental.constrained.fma.f64(double %f1, double %f2, double %f3, metadata, metadata)
define double @f1(double %f1, double %f2, double %acc) #0 {
; CHECK-LABEL: f1:
; CHECK-SCALAR: msdbr %f4, %f0, %f2
; CHECK-SCALAR: ldr %f0, %f4
; CHECK-VECTOR: wfmsdb %f0, %f0, %f2, %f4
; CHECK: br %r14
%negacc = fsub double -0.0, %acc
%res = call double @llvm.experimental.constrained.fma.f64 (
double %f1, double %f2, double %negacc,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %res
}
define double @f2(double %f1, double *%ptr, double %acc) #0 {
; CHECK-LABEL: f2:
; CHECK: msdb %f2, %f0, 0(%r2)
; CHECK: ldr %f0, %f2
; CHECK: br %r14
%f2 = load double, double *%ptr
%negacc = fsub double -0.0, %acc
%res = call double @llvm.experimental.constrained.fma.f64 (
double %f1, double %f2, double %negacc,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %res
}
define double @f3(double %f1, double *%base, double %acc) #0 {
; CHECK-LABEL: f3:
; CHECK: msdb %f2, %f0, 4088(%r2)
; CHECK: ldr %f0, %f2
; CHECK: br %r14
%ptr = getelementptr double, double *%base, i64 511
%f2 = load double, double *%ptr
%negacc = fsub double -0.0, %acc
%res = call double @llvm.experimental.constrained.fma.f64 (
double %f1, double %f2, double %negacc,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %res
}
define double @f4(double %f1, double *%base, double %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: msdb %f2, %f0, 0(%r2)
; CHECK: ldr %f0, %f2
; CHECK: br %r14
%ptr = getelementptr double, double *%base, i64 512
%f2 = load double, double *%ptr
%negacc = fsub double -0.0, %acc
%res = call double @llvm.experimental.constrained.fma.f64 (
double %f1, double %f2, double %negacc,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %res
}
define double @f5(double %f1, double *%base, double %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, -8
; CHECK: msdb %f2, %f0, 0(%r2)
; CHECK: ldr %f0, %f2
; CHECK: br %r14
%ptr = getelementptr double, double *%base, i64 -1
%f2 = load double, double *%ptr
%negacc = fsub double -0.0, %acc
%res = call double @llvm.experimental.constrained.fma.f64 (
double %f1, double %f2, double %negacc,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %res
}
define double @f6(double %f1, double *%base, i64 %index, double %acc) #0 {
; CHECK-LABEL: f6:
; CHECK: sllg %r1, %r3, 3
; CHECK: msdb %f2, %f0, 0(%r1,%r2)
; CHECK: ldr %f0, %f2
; CHECK: br %r14
%ptr = getelementptr double, double *%base, i64 %index
%f2 = load double, double *%ptr
%negacc = fsub double -0.0, %acc
%res = call double @llvm.experimental.constrained.fma.f64 (
double %f1, double %f2, double %negacc,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %res
}
define double @f7(double %f1, double *%base, i64 %index, double %acc) #0 {
; CHECK-LABEL: f7:
; CHECK: sllg %r1, %r3, 3
; CHECK: msdb %f2, %f0, 4088({{%r1,%r2|%r2,%r1}})
; CHECK: ldr %f0, %f2
; CHECK: br %r14
%index2 = add i64 %index, 511
%ptr = getelementptr double, double *%base, i64 %index2
%f2 = load double, double *%ptr
%negacc = fsub double -0.0, %acc
%res = call double @llvm.experimental.constrained.fma.f64 (
double %f1, double %f2, double %negacc,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %res
}
define double @f8(double %f1, double *%base, i64 %index, double %acc) #0 {
; CHECK-LABEL: f8:
; CHECK: sllg %r1, %r3, 3
; CHECK: lay %r1, 4096({{%r1,%r2|%r2,%r1}})
; CHECK: msdb %f2, %f0, 0(%r1)
; CHECK: ldr %f0, %f2
; CHECK: br %r14
%index2 = add i64 %index, 512
%ptr = getelementptr double, double *%base, i64 %index2
%f2 = load double, double *%ptr
%negacc = fsub double -0.0, %acc
%res = call double @llvm.experimental.constrained.fma.f64 (
double %f1, double %f2, double %negacc,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %res
}
attributes #0 = { strictfp }
|