fp-strict-mul-04.ll
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; Test strict multiplication of two f64s, producing an f128 result.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
declare fp128 @llvm.experimental.constrained.fmul.f128(fp128, fp128, metadata, metadata)
declare double @llvm.experimental.constrained.fadd.f64(double, double, metadata, metadata)
declare double @llvm.experimental.constrained.fptrunc.f64.f128(fp128, metadata, metadata)
declare fp128 @llvm.experimental.constrained.fpext.f128.f64(double, metadata)
declare double @foo()
; Check register multiplication. "mxdbr %f0, %f2" is not valid from LLVM's
; point of view, because %f2 is the low register of the FP128 %f0. Pass the
; multiplier in %f4 instead.
define void @f1(double %f1, double %dummy, double %f2, fp128 *%dst) #0 {
; CHECK-LABEL: f1:
; CHECK: mxdbr %f0, %f4
; CHECK: std %f0, 0(%r2)
; CHECK: std %f2, 8(%r2)
; CHECK: br %r14
%f1x = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %f1,
metadata !"fpexcept.strict") #0
%f2x = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %f2,
metadata !"fpexcept.strict") #0
%res = call fp128 @llvm.experimental.constrained.fmul.f128(
fp128 %f1x, fp128 %f2x,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
store fp128 %res, fp128 *%dst
ret void
}
; Check the low end of the MXDB range.
define void @f2(double %f1, double *%ptr, fp128 *%dst) #0 {
; CHECK-LABEL: f2:
; CHECK: mxdb %f0, 0(%r2)
; CHECK: std %f0, 0(%r3)
; CHECK: std %f2, 8(%r3)
; CHECK: br %r14
%f2 = load double, double *%ptr
%f1x = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %f1,
metadata !"fpexcept.strict") #0
%f2x = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %f2,
metadata !"fpexcept.strict") #0
%res = call fp128 @llvm.experimental.constrained.fmul.f128(
fp128 %f1x, fp128 %f2x,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
store fp128 %res, fp128 *%dst
ret void
}
; Check the high end of the aligned MXDB range.
define void @f3(double %f1, double *%base, fp128 *%dst) #0 {
; CHECK-LABEL: f3:
; CHECK: mxdb %f0, 4088(%r2)
; CHECK: std %f0, 0(%r3)
; CHECK: std %f2, 8(%r3)
; CHECK: br %r14
%ptr = getelementptr double, double *%base, i64 511
%f2 = load double, double *%ptr
%f1x = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %f1,
metadata !"fpexcept.strict") #0
%f2x = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %f2,
metadata !"fpexcept.strict") #0
%res = call fp128 @llvm.experimental.constrained.fmul.f128(
fp128 %f1x, fp128 %f2x,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
store fp128 %res, fp128 *%dst
ret void
}
; Check the next doubleword up, which needs separate address logic.
; Other sequences besides this one would be OK.
define void @f4(double %f1, double *%base, fp128 *%dst) #0 {
; CHECK-LABEL: f4:
; CHECK: aghi %r2, 4096
; CHECK: mxdb %f0, 0(%r2)
; CHECK: std %f0, 0(%r3)
; CHECK: std %f2, 8(%r3)
; CHECK: br %r14
%ptr = getelementptr double, double *%base, i64 512
%f2 = load double, double *%ptr
%f1x = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %f1,
metadata !"fpexcept.strict") #0
%f2x = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %f2,
metadata !"fpexcept.strict") #0
%res = call fp128 @llvm.experimental.constrained.fmul.f128(
fp128 %f1x, fp128 %f2x,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
store fp128 %res, fp128 *%dst
ret void
}
; Check negative displacements, which also need separate address logic.
define void @f5(double %f1, double *%base, fp128 *%dst) #0 {
; CHECK-LABEL: f5:
; CHECK: aghi %r2, -8
; CHECK: mxdb %f0, 0(%r2)
; CHECK: std %f0, 0(%r3)
; CHECK: std %f2, 8(%r3)
; CHECK: br %r14
%ptr = getelementptr double, double *%base, i64 -1
%f2 = load double, double *%ptr
%f1x = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %f1,
metadata !"fpexcept.strict") #0
%f2x = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %f2,
metadata !"fpexcept.strict") #0
%res = call fp128 @llvm.experimental.constrained.fmul.f128(
fp128 %f1x, fp128 %f2x,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
store fp128 %res, fp128 *%dst
ret void
}
; Check that MXDB allows indices.
define void @f6(double %f1, double *%base, i64 %index, fp128 *%dst) #0 {
; CHECK-LABEL: f6:
; CHECK: sllg %r1, %r3, 3
; CHECK: mxdb %f0, 800(%r1,%r2)
; CHECK: std %f0, 0(%r4)
; CHECK: std %f2, 8(%r4)
; CHECK: br %r14
%ptr1 = getelementptr double, double *%base, i64 %index
%ptr2 = getelementptr double, double *%ptr1, i64 100
%f2 = load double, double *%ptr2
%f1x = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %f1,
metadata !"fpexcept.strict") #0
%f2x = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %f2,
metadata !"fpexcept.strict") #0
%res = call fp128 @llvm.experimental.constrained.fmul.f128(
fp128 %f1x, fp128 %f2x,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
store fp128 %res, fp128 *%dst
ret void
}
; Check that multiplications of spilled values can use MXDB rather than MXDBR.
define double @f7(double *%ptr0) #0 {
; CHECK-LABEL: f7:
; CHECK: brasl %r14, foo@PLT
; CHECK: mxdb %f0, 160(%r15)
; CHECK: br %r14
%ptr1 = getelementptr double, double *%ptr0, i64 2
%ptr2 = getelementptr double, double *%ptr0, i64 4
%ptr3 = getelementptr double, double *%ptr0, i64 6
%ptr4 = getelementptr double, double *%ptr0, i64 8
%ptr5 = getelementptr double, double *%ptr0, i64 10
%ptr6 = getelementptr double, double *%ptr0, i64 12
%ptr7 = getelementptr double, double *%ptr0, i64 14
%ptr8 = getelementptr double, double *%ptr0, i64 16
%ptr9 = getelementptr double, double *%ptr0, i64 18
%ptr10 = getelementptr double, double *%ptr0, i64 20
%val0 = load double, double *%ptr0
%val1 = load double, double *%ptr1
%val2 = load double, double *%ptr2
%val3 = load double, double *%ptr3
%val4 = load double, double *%ptr4
%val5 = load double, double *%ptr5
%val6 = load double, double *%ptr6
%val7 = load double, double *%ptr7
%val8 = load double, double *%ptr8
%val9 = load double, double *%ptr9
%val10 = load double, double *%ptr10
%frob0 = call double @llvm.experimental.constrained.fadd.f64(
double %val0, double %val0,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%frob1 = call double @llvm.experimental.constrained.fadd.f64(
double %val1, double %val1,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%frob2 = call double @llvm.experimental.constrained.fadd.f64(
double %val2, double %val2,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%frob3 = call double @llvm.experimental.constrained.fadd.f64(
double %val3, double %val3,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%frob4 = call double @llvm.experimental.constrained.fadd.f64(
double %val4, double %val4,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%frob5 = call double @llvm.experimental.constrained.fadd.f64(
double %val5, double %val5,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%frob6 = call double @llvm.experimental.constrained.fadd.f64(
double %val6, double %val6,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%frob7 = call double @llvm.experimental.constrained.fadd.f64(
double %val7, double %val7,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%frob8 = call double @llvm.experimental.constrained.fadd.f64(
double %val8, double %val8,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%frob9 = call double @llvm.experimental.constrained.fadd.f64(
double %val9, double %val9,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%frob10 = call double @llvm.experimental.constrained.fadd.f64(
double %val10, double %val10,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
store double %frob0, double *%ptr0
store double %frob1, double *%ptr1
store double %frob2, double *%ptr2
store double %frob3, double *%ptr3
store double %frob4, double *%ptr4
store double %frob5, double *%ptr5
store double %frob6, double *%ptr6
store double %frob7, double *%ptr7
store double %frob8, double *%ptr8
store double %frob9, double *%ptr9
store double %frob10, double *%ptr10
%ret = call double @foo() #0
%accext0 = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %ret,
metadata !"fpexcept.strict") #0
%ext0 = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %frob0,
metadata !"fpexcept.strict") #0
%mul0 = call fp128 @llvm.experimental.constrained.fmul.f128(
fp128 %accext0, fp128 %ext0,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%extra0 = call fp128 @llvm.experimental.constrained.fmul.f128(
fp128 %mul0, fp128 0xL00000000000000003fff000001000000,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%trunc0 = call double @llvm.experimental.constrained.fptrunc.f64.f128(
fp128 %extra0,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%accext1 = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %trunc0,
metadata !"fpexcept.strict") #0
%ext1 = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %frob1,
metadata !"fpexcept.strict") #0
%mul1 = call fp128 @llvm.experimental.constrained.fmul.f128(
fp128 %accext1, fp128 %ext1,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%extra1 = call fp128 @llvm.experimental.constrained.fmul.f128(
fp128 %mul1, fp128 0xL00000000000000003fff000002000000,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%trunc1 = call double @llvm.experimental.constrained.fptrunc.f64.f128(
fp128 %extra1,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%accext2 = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %trunc1,
metadata !"fpexcept.strict") #0
%ext2 = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %frob2,
metadata !"fpexcept.strict") #0
%mul2 = call fp128 @llvm.experimental.constrained.fmul.f128(
fp128 %accext2, fp128 %ext2,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%extra2 = call fp128 @llvm.experimental.constrained.fmul.f128(
fp128 %mul2, fp128 0xL00000000000000003fff000003000000,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%trunc2 = call double @llvm.experimental.constrained.fptrunc.f64.f128(
fp128 %extra2,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%accext3 = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %trunc2,
metadata !"fpexcept.strict") #0
%ext3 = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %frob3,
metadata !"fpexcept.strict") #0
%mul3 = call fp128 @llvm.experimental.constrained.fmul.f128(
fp128 %accext3, fp128 %ext3,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%extra3 = call fp128 @llvm.experimental.constrained.fmul.f128(
fp128 %mul3, fp128 0xL00000000000000003fff000004000000,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%trunc3 = call double @llvm.experimental.constrained.fptrunc.f64.f128(
fp128 %extra3,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%accext4 = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %trunc3,
metadata !"fpexcept.strict") #0
%ext4 = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %frob4,
metadata !"fpexcept.strict") #0
%mul4 = call fp128 @llvm.experimental.constrained.fmul.f128(
fp128 %accext4, fp128 %ext4,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%extra4 = call fp128 @llvm.experimental.constrained.fmul.f128(
fp128 %mul4, fp128 0xL00000000000000003fff000005000000,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%trunc4 = call double @llvm.experimental.constrained.fptrunc.f64.f128(
fp128 %extra4,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%accext5 = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %trunc4,
metadata !"fpexcept.strict") #0
%ext5 = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %frob5,
metadata !"fpexcept.strict") #0
%mul5 = call fp128 @llvm.experimental.constrained.fmul.f128(
fp128 %accext5, fp128 %ext5,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%extra5 = call fp128 @llvm.experimental.constrained.fmul.f128(
fp128 %mul5, fp128 0xL00000000000000003fff000006000000,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%trunc5 = call double @llvm.experimental.constrained.fptrunc.f64.f128(
fp128 %extra5,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%accext6 = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %trunc5,
metadata !"fpexcept.strict") #0
%ext6 = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %frob6,
metadata !"fpexcept.strict") #0
%mul6 = call fp128 @llvm.experimental.constrained.fmul.f128(
fp128 %accext6, fp128 %ext6,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%extra6 = call fp128 @llvm.experimental.constrained.fmul.f128(
fp128 %mul6, fp128 0xL00000000000000003fff000007000000,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%trunc6 = call double @llvm.experimental.constrained.fptrunc.f64.f128(
fp128 %extra6,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%accext7 = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %trunc6,
metadata !"fpexcept.strict") #0
%ext7 = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %frob7,
metadata !"fpexcept.strict") #0
%mul7 = call fp128 @llvm.experimental.constrained.fmul.f128(
fp128 %accext7, fp128 %ext7,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%extra7 = call fp128 @llvm.experimental.constrained.fmul.f128(
fp128 %mul7, fp128 0xL00000000000000003fff000008000000,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%trunc7 = call double @llvm.experimental.constrained.fptrunc.f64.f128(
fp128 %extra7,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%accext8 = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %trunc7,
metadata !"fpexcept.strict") #0
%ext8 = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %frob8,
metadata !"fpexcept.strict") #0
%mul8 = call fp128 @llvm.experimental.constrained.fmul.f128(
fp128 %accext8, fp128 %ext8,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%extra8 = call fp128 @llvm.experimental.constrained.fmul.f128(
fp128 %mul8, fp128 0xL00000000000000003fff000009000000,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%trunc8 = call double @llvm.experimental.constrained.fptrunc.f64.f128(
fp128 %extra8,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%accext9 = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %trunc8,
metadata !"fpexcept.strict") #0
%ext9 = call fp128 @llvm.experimental.constrained.fpext.f128.f64(
double %frob9,
metadata !"fpexcept.strict") #0
%mul9 = call fp128 @llvm.experimental.constrained.fmul.f128(
fp128 %accext9, fp128 %ext9,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%extra9 = call fp128 @llvm.experimental.constrained.fmul.f128(
fp128 %mul9, fp128 0xL00000000000000003fff00000a000000,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
%trunc9 = call double @llvm.experimental.constrained.fptrunc.f64.f128(
fp128 %extra9,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
ret double %trunc9
}
attributes #0 = { strictfp }