436 lines
17 KiB
LLVM
436 lines
17 KiB
LLVM
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; Test 32-bit floating-point strict comparison. The tests assume a z10
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; implementation of select, using conditional branches rather than LOCGR.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 \
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; RUN: | FileCheck -check-prefix=CHECK -check-prefix=CHECK-SCALAR %s
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z14 \
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; RUN: | FileCheck -check-prefix=CHECK -check-prefix=CHECK-VECTOR %s
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declare float @foo()
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; Check comparison with registers.
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define i64 @f1(i64 %a, i64 %b, float %f1, float %f2) #0 {
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; CHECK-LABEL: f1:
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; CHECK: cebr %f0, %f2
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; CHECK-SCALAR-NEXT: ber %r14
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; CHECK-SCALAR: lgr %r2, %r3
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; CHECK-VECTOR-NEXT: locgrne %r2, %r3
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; CHECK: br %r14
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%cond = call i1 @llvm.experimental.constrained.fcmp.f32(
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float %f1, float %f2,
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metadata !"oeq",
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metadata !"fpexcept.strict") #0
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; Check the low end of the CEB range.
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define i64 @f2(i64 %a, i64 %b, float %f1, float *%ptr) #0 {
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; CHECK-LABEL: f2:
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; CHECK: ceb %f0, 0(%r4)
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; CHECK-SCALAR-NEXT: ber %r14
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; CHECK-SCALAR: lgr %r2, %r3
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; CHECK-VECTOR-NEXT: locgrne %r2, %r3
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; CHECK: br %r14
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%f2 = load float, float *%ptr
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%cond = call i1 @llvm.experimental.constrained.fcmp.f32(
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float %f1, float %f2,
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metadata !"oeq",
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metadata !"fpexcept.strict") #0
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; Check the high end of the aligned CEB range.
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define i64 @f3(i64 %a, i64 %b, float %f1, float *%base) #0 {
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; CHECK-LABEL: f3:
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; CHECK: ceb %f0, 4092(%r4)
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; CHECK-SCALAR-NEXT: ber %r14
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; CHECK-SCALAR: lgr %r2, %r3
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; CHECK-VECTOR-NEXT: locgrne %r2, %r3
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; CHECK: br %r14
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%ptr = getelementptr float, float *%base, i64 1023
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%f2 = load float, float *%ptr
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%cond = call i1 @llvm.experimental.constrained.fcmp.f32(
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float %f1, float %f2,
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metadata !"oeq",
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metadata !"fpexcept.strict") #0
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; Check the next word up, which needs separate address logic.
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; Other sequences besides this one would be OK.
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define i64 @f4(i64 %a, i64 %b, float %f1, float *%base) #0 {
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; CHECK-LABEL: f4:
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; CHECK: aghi %r4, 4096
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; CHECK: ceb %f0, 0(%r4)
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; CHECK-SCALAR-NEXT: ber %r14
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; CHECK-SCALAR: lgr %r2, %r3
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; CHECK-VECTOR-NEXT: locgrne %r2, %r3
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; CHECK: br %r14
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%ptr = getelementptr float, float *%base, i64 1024
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%f2 = load float, float *%ptr
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%cond = call i1 @llvm.experimental.constrained.fcmp.f32(
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float %f1, float %f2,
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metadata !"oeq",
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metadata !"fpexcept.strict") #0
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; Check negative displacements, which also need separate address logic.
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define i64 @f5(i64 %a, i64 %b, float %f1, float *%base) #0 {
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; CHECK-LABEL: f5:
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; CHECK: aghi %r4, -4
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; CHECK: ceb %f0, 0(%r4)
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; CHECK-SCALAR-NEXT: ber %r14
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; CHECK-SCALAR: lgr %r2, %r3
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; CHECK-VECTOR-NEXT: locgrne %r2, %r3
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; CHECK: br %r14
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%ptr = getelementptr float, float *%base, i64 -1
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%f2 = load float, float *%ptr
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%cond = call i1 @llvm.experimental.constrained.fcmp.f32(
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float %f1, float %f2,
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metadata !"oeq",
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metadata !"fpexcept.strict") #0
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; Check that CEB allows indices.
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define i64 @f6(i64 %a, i64 %b, float %f1, float *%base, i64 %index) #0 {
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; CHECK-LABEL: f6:
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; CHECK: sllg %r1, %r5, 2
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; CHECK: ceb %f0, 400(%r1,%r4)
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; CHECK-SCALAR-NEXT: ber %r14
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; CHECK-SCALAR: lgr %r2, %r3
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; CHECK-VECTOR-NEXT: locgrne %r2, %r3
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; CHECK: br %r14
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%ptr1 = getelementptr float, float *%base, i64 %index
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%ptr2 = getelementptr float, float *%ptr1, i64 100
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%f2 = load float, float *%ptr2
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%cond = call i1 @llvm.experimental.constrained.fcmp.f32(
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float %f1, float %f2,
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metadata !"oeq",
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metadata !"fpexcept.strict") #0
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; Check that comparisons of spilled values can use CEB rather than CEBR.
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define float @f7(float *%ptr0) #0 {
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; CHECK-LABEL: f7:
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; CHECK: brasl %r14, foo@PLT
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; CHECK-SCALAR: ceb {{%f[0-9]+}}, 16{{[04]}}(%r15)
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; CHECK: br %r14
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%ptr1 = getelementptr float, float *%ptr0, i64 2
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%ptr2 = getelementptr float, float *%ptr0, i64 4
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%ptr3 = getelementptr float, float *%ptr0, i64 6
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%ptr4 = getelementptr float, float *%ptr0, i64 8
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%ptr5 = getelementptr float, float *%ptr0, i64 10
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%ptr6 = getelementptr float, float *%ptr0, i64 12
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%ptr7 = getelementptr float, float *%ptr0, i64 14
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%ptr8 = getelementptr float, float *%ptr0, i64 16
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%ptr9 = getelementptr float, float *%ptr0, i64 18
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%ptr10 = getelementptr float, float *%ptr0, i64 20
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%val0 = load float, float *%ptr0
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%val1 = load float, float *%ptr1
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%val2 = load float, float *%ptr2
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%val3 = load float, float *%ptr3
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%val4 = load float, float *%ptr4
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%val5 = load float, float *%ptr5
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%val6 = load float, float *%ptr6
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%val7 = load float, float *%ptr7
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%val8 = load float, float *%ptr8
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%val9 = load float, float *%ptr9
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%val10 = load float, float *%ptr10
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%ret = call float @foo() #0
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%cmp0 = call i1 @llvm.experimental.constrained.fcmp.f32(
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float %ret, float %val0,
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metadata !"olt",
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metadata !"fpexcept.strict") #0
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%cmp1 = call i1 @llvm.experimental.constrained.fcmp.f32(
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float %ret, float %val1,
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metadata !"olt",
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metadata !"fpexcept.strict") #0
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%cmp2 = call i1 @llvm.experimental.constrained.fcmp.f32(
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float %ret, float %val2,
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metadata !"olt",
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metadata !"fpexcept.strict") #0
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%cmp3 = call i1 @llvm.experimental.constrained.fcmp.f32(
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float %ret, float %val3,
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metadata !"olt",
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metadata !"fpexcept.strict") #0
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%cmp4 = call i1 @llvm.experimental.constrained.fcmp.f32(
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float %ret, float %val4,
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metadata !"olt",
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metadata !"fpexcept.strict") #0
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%cmp5 = call i1 @llvm.experimental.constrained.fcmp.f32(
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float %ret, float %val5,
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metadata !"olt",
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metadata !"fpexcept.strict") #0
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%cmp6 = call i1 @llvm.experimental.constrained.fcmp.f32(
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float %ret, float %val6,
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metadata !"olt",
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metadata !"fpexcept.strict") #0
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%cmp7 = call i1 @llvm.experimental.constrained.fcmp.f32(
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float %ret, float %val7,
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metadata !"olt",
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metadata !"fpexcept.strict") #0
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%cmp8 = call i1 @llvm.experimental.constrained.fcmp.f32(
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float %ret, float %val8,
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metadata !"olt",
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metadata !"fpexcept.strict") #0
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%cmp9 = call i1 @llvm.experimental.constrained.fcmp.f32(
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float %ret, float %val9,
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metadata !"olt",
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metadata !"fpexcept.strict") #0
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%cmp10 = call i1 @llvm.experimental.constrained.fcmp.f32(
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float %ret, float %val10,
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metadata !"olt",
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metadata !"fpexcept.strict") #0
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%sel0 = select i1 %cmp0, float %ret, float 0.0
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%sel1 = select i1 %cmp1, float %sel0, float 1.0
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%sel2 = select i1 %cmp2, float %sel1, float 2.0
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%sel3 = select i1 %cmp3, float %sel2, float 3.0
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%sel4 = select i1 %cmp4, float %sel3, float 4.0
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%sel5 = select i1 %cmp5, float %sel4, float 5.0
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%sel6 = select i1 %cmp6, float %sel5, float 6.0
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%sel7 = select i1 %cmp7, float %sel6, float 7.0
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%sel8 = select i1 %cmp8, float %sel7, float 8.0
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%sel9 = select i1 %cmp9, float %sel8, float 9.0
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%sel10 = select i1 %cmp10, float %sel9, float 10.0
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ret float %sel10
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}
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; Check comparison with zero.
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define i64 @f8(i64 %a, i64 %b, float %f) #0 {
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; CHECK-LABEL: f8:
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; CHECK: ltebr %f0, %f0
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; CHECK-SCALAR-NEXT: ber %r14
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; CHECK-SCALAR: lgr %r2, %r3
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; CHECK-VECTOR-NEXT: locgrne %r2, %r3
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; CHECK: br %r14
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%cond = call i1 @llvm.experimental.constrained.fcmp.f32(
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float %f, float 0.0,
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metadata !"oeq",
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metadata !"fpexcept.strict") #0
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; Check the comparison can be reversed if that allows CEB to be used,
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; first with oeq.
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define i64 @f9(i64 %a, i64 %b, float %f2, float *%ptr) #0 {
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; CHECK-LABEL: f9:
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; CHECK: ceb %f0, 0(%r4)
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; CHECK-SCALAR-NEXT: ber %r14
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; CHECK-SCALAR: lgr %r2, %r3
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; CHECK-VECTOR-NEXT: locgrne %r2, %r3
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; CHECK: br %r14
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%f1 = load float, float *%ptr
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%cond = call i1 @llvm.experimental.constrained.fcmp.f32(
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float %f1, float %f2,
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metadata !"oeq",
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metadata !"fpexcept.strict") #0
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; ...then one.
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define i64 @f10(i64 %a, i64 %b, float %f2, float *%ptr) #0 {
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; CHECK-LABEL: f10:
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; CHECK: ceb %f0, 0(%r4)
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; CHECK-SCALAR-NEXT: blhr %r14
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; CHECK-SCALAR: lgr %r2, %r3
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; CHECK-VECTOR-NEXT: locgrnlh %r2, %r3
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; CHECK: br %r14
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%f1 = load float, float *%ptr
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%cond = call i1 @llvm.experimental.constrained.fcmp.f32(
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float %f1, float %f2,
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metadata !"one",
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metadata !"fpexcept.strict") #0
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; ...then olt.
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define i64 @f11(i64 %a, i64 %b, float %f2, float *%ptr) #0 {
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; CHECK-LABEL: f11:
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; CHECK: ceb %f0, 0(%r4)
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; CHECK-SCALAR-NEXT: bhr %r14
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; CHECK-SCALAR: lgr %r2, %r3
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; CHECK-VECTOR-NEXT: locgrnh %r2, %r3
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; CHECK: br %r14
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%f1 = load float, float *%ptr
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%cond = call i1 @llvm.experimental.constrained.fcmp.f32(
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float %f1, float %f2,
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metadata !"olt",
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metadata !"fpexcept.strict") #0
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; ...then ole.
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define i64 @f12(i64 %a, i64 %b, float %f2, float *%ptr) #0 {
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; CHECK-LABEL: f12:
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; CHECK: ceb %f0, 0(%r4)
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; CHECK-SCALAR-NEXT: bher %r14
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; CHECK-SCALAR: lgr %r2, %r3
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; CHECK-VECTOR-NEXT: locgrnhe %r2, %r3
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; CHECK: br %r14
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%f1 = load float, float *%ptr
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%cond = call i1 @llvm.experimental.constrained.fcmp.f32(
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float %f1, float %f2,
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metadata !"ole",
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metadata !"fpexcept.strict") #0
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; ...then oge.
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define i64 @f13(i64 %a, i64 %b, float %f2, float *%ptr) #0 {
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; CHECK-LABEL: f13:
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; CHECK: ceb %f0, 0(%r4)
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; CHECK-SCALAR-NEXT: bler %r14
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; CHECK-SCALAR: lgr %r2, %r3
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; CHECK-VECTOR-NEXT: locgrnle %r2, %r3
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; CHECK: br %r14
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%f1 = load float, float *%ptr
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%cond = call i1 @llvm.experimental.constrained.fcmp.f32(
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float %f1, float %f2,
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metadata !"oge",
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metadata !"fpexcept.strict") #0
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; ...then ogt.
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define i64 @f14(i64 %a, i64 %b, float %f2, float *%ptr) #0 {
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; CHECK-LABEL: f14:
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; CHECK: ceb %f0, 0(%r4)
|
||
|
|
; CHECK-SCALAR-NEXT: blr %r14
|
||
|
|
; CHECK-SCALAR: lgr %r2, %r3
|
||
|
|
; CHECK-VECTOR-NEXT: locgrnl %r2, %r3
|
||
|
|
; CHECK: br %r14
|
||
|
|
%f1 = load float, float *%ptr
|
||
|
|
%cond = call i1 @llvm.experimental.constrained.fcmp.f32(
|
||
|
|
float %f1, float %f2,
|
||
|
|
metadata !"ogt",
|
||
|
|
metadata !"fpexcept.strict") #0
|
||
|
|
%res = select i1 %cond, i64 %a, i64 %b
|
||
|
|
ret i64 %res
|
||
|
|
}
|
||
|
|
|
||
|
|
; ...then ueq.
|
||
|
|
define i64 @f15(i64 %a, i64 %b, float %f2, float *%ptr) #0 {
|
||
|
|
; CHECK-LABEL: f15:
|
||
|
|
; CHECK: ceb %f0, 0(%r4)
|
||
|
|
; CHECK-SCALAR-NEXT: bnlhr %r14
|
||
|
|
; CHECK-SCALAR: lgr %r2, %r3
|
||
|
|
; CHECK-VECTOR-NEXT: locgrlh %r2, %r3
|
||
|
|
; CHECK: br %r14
|
||
|
|
%f1 = load float, float *%ptr
|
||
|
|
%cond = call i1 @llvm.experimental.constrained.fcmp.f32(
|
||
|
|
float %f1, float %f2,
|
||
|
|
metadata !"ueq",
|
||
|
|
metadata !"fpexcept.strict") #0
|
||
|
|
%res = select i1 %cond, i64 %a, i64 %b
|
||
|
|
ret i64 %res
|
||
|
|
}
|
||
|
|
|
||
|
|
; ...then une.
|
||
|
|
define i64 @f16(i64 %a, i64 %b, float %f2, float *%ptr) #0 {
|
||
|
|
; CHECK-LABEL: f16:
|
||
|
|
; CHECK: ceb %f0, 0(%r4)
|
||
|
|
; CHECK-SCALAR-NEXT: bner %r14
|
||
|
|
; CHECK-SCALAR: lgr %r2, %r3
|
||
|
|
; CHECK-VECTOR-NEXT: locgre %r2, %r3
|
||
|
|
; CHECK: br %r14
|
||
|
|
%f1 = load float, float *%ptr
|
||
|
|
%cond = call i1 @llvm.experimental.constrained.fcmp.f32(
|
||
|
|
float %f1, float %f2,
|
||
|
|
metadata !"une",
|
||
|
|
metadata !"fpexcept.strict") #0
|
||
|
|
%res = select i1 %cond, i64 %a, i64 %b
|
||
|
|
ret i64 %res
|
||
|
|
}
|
||
|
|
|
||
|
|
; ...then ult.
|
||
|
|
define i64 @f17(i64 %a, i64 %b, float %f2, float *%ptr) #0 {
|
||
|
|
; CHECK-LABEL: f17:
|
||
|
|
; CHECK: ceb %f0, 0(%r4)
|
||
|
|
; CHECK-SCALAR-NEXT: bnler %r14
|
||
|
|
; CHECK-SCALAR: lgr %r2, %r3
|
||
|
|
; CHECK-VECTOR-NEXT: locgrle %r2, %r3
|
||
|
|
; CHECK: br %r14
|
||
|
|
%f1 = load float, float *%ptr
|
||
|
|
%cond = call i1 @llvm.experimental.constrained.fcmp.f32(
|
||
|
|
float %f1, float %f2,
|
||
|
|
metadata !"ult",
|
||
|
|
metadata !"fpexcept.strict") #0
|
||
|
|
%res = select i1 %cond, i64 %a, i64 %b
|
||
|
|
ret i64 %res
|
||
|
|
}
|
||
|
|
|
||
|
|
; ...then ule.
|
||
|
|
define i64 @f18(i64 %a, i64 %b, float %f2, float *%ptr) #0 {
|
||
|
|
; CHECK-LABEL: f18:
|
||
|
|
; CHECK: ceb %f0, 0(%r4)
|
||
|
|
; CHECK-SCALAR-NEXT: bnlr %r14
|
||
|
|
; CHECK-SCALAR: lgr %r2, %r3
|
||
|
|
; CHECK-VECTOR-NEXT: locgrl %r2, %r3
|
||
|
|
; CHECK: br %r14
|
||
|
|
%f1 = load float, float *%ptr
|
||
|
|
%cond = call i1 @llvm.experimental.constrained.fcmp.f32(
|
||
|
|
float %f1, float %f2,
|
||
|
|
metadata !"ule",
|
||
|
|
metadata !"fpexcept.strict") #0
|
||
|
|
%res = select i1 %cond, i64 %a, i64 %b
|
||
|
|
ret i64 %res
|
||
|
|
}
|
||
|
|
|
||
|
|
; ...then uge.
|
||
|
|
define i64 @f19(i64 %a, i64 %b, float %f2, float *%ptr) #0 {
|
||
|
|
; CHECK-LABEL: f19:
|
||
|
|
; CHECK: ceb %f0, 0(%r4)
|
||
|
|
; CHECK-SCALAR-NEXT: bnhr %r14
|
||
|
|
; CHECK-SCALAR: lgr %r2, %r3
|
||
|
|
; CHECK-VECTOR-NEXT: locgrh %r2, %r3
|
||
|
|
; CHECK: br %r14
|
||
|
|
%f1 = load float, float *%ptr
|
||
|
|
%cond = call i1 @llvm.experimental.constrained.fcmp.f32(
|
||
|
|
float %f1, float %f2,
|
||
|
|
metadata !"uge",
|
||
|
|
metadata !"fpexcept.strict") #0
|
||
|
|
%res = select i1 %cond, i64 %a, i64 %b
|
||
|
|
ret i64 %res
|
||
|
|
}
|
||
|
|
|
||
|
|
; ...then ugt.
|
||
|
|
define i64 @f20(i64 %a, i64 %b, float %f2, float *%ptr) #0 {
|
||
|
|
; CHECK-LABEL: f20:
|
||
|
|
; CHECK: ceb %f0, 0(%r4)
|
||
|
|
; CHECK-SCALAR-NEXT: bnher %r14
|
||
|
|
; CHECK-SCALAR: lgr %r2, %r3
|
||
|
|
; CHECK-VECTOR-NEXT: locgrhe %r2, %r3
|
||
|
|
; CHECK: br %r14
|
||
|
|
%f1 = load float, float *%ptr
|
||
|
|
%cond = call i1 @llvm.experimental.constrained.fcmp.f32(
|
||
|
|
float %f1, float %f2,
|
||
|
|
metadata !"ugt",
|
||
|
|
metadata !"fpexcept.strict") #0
|
||
|
|
%res = select i1 %cond, i64 %a, i64 %b
|
||
|
|
ret i64 %res
|
||
|
|
}
|
||
|
|
|
||
|
|
attributes #0 = { strictfp }
|
||
|
|
|
||
|
|
declare i1 @llvm.experimental.constrained.fcmp.f32(float, float, metadata, metadata)
|