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https://github.com/c64scene-ar/llvm-6502.git
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cf0fa9b9dd
The z13 vector facility includes some instructions that operate only on the high f64 in a v2f64, effectively extending the FP register set from 16 to 32 registers. It's still better to use the old instructions if the operands happen to fit though, since the older instructions have a shorter encoding. Based on a patch by Richard Sandiford. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236524 91177308-0d34-0410-b5e6-96231b3b80d8
155 lines
5.1 KiB
LLVM
155 lines
5.1 KiB
LLVM
; Test extensions of f32 to f64.
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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=z13 | FileCheck %s
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; Check register extension.
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define double @f1(float %val) {
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; CHECK-LABEL: f1:
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; CHECK: ldebr %f0, %f0
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; CHECK: br %r14
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%res = fpext float %val to double
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ret double %res
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}
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; Check the low end of the LDEB range.
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define double @f2(float *%ptr) {
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; CHECK-LABEL: f2:
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; CHECK: ldeb %f0, 0(%r2)
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; CHECK: br %r14
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%val = load float , float *%ptr
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%res = fpext float %val to double
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ret double %res
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}
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; Check the high end of the aligned LDEB range.
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define double @f3(float *%base) {
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; CHECK-LABEL: f3:
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; CHECK: ldeb %f0, 4092(%r2)
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; CHECK: br %r14
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%ptr = getelementptr float, float *%base, i64 1023
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%val = load float , float *%ptr
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%res = fpext float %val to double
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ret double %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 double @f4(float *%base) {
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; CHECK-LABEL: f4:
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; CHECK: aghi %r2, 4096
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; CHECK: ldeb %f0, 0(%r2)
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; CHECK: br %r14
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%ptr = getelementptr float, float *%base, i64 1024
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%val = load float , float *%ptr
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%res = fpext float %val to double
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ret double %res
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}
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; Check negative displacements, which also need separate address logic.
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define double @f5(float *%base) {
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; CHECK-LABEL: f5:
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; CHECK: aghi %r2, -4
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; CHECK: ldeb %f0, 0(%r2)
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; CHECK: br %r14
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%ptr = getelementptr float, float *%base, i64 -1
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%val = load float , float *%ptr
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%res = fpext float %val to double
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ret double %res
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}
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; Check that LDEB allows indices.
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define double @f6(float *%base, i64 %index) {
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; CHECK-LABEL: f6:
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; CHECK: sllg %r1, %r3, 2
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; CHECK: ldeb %f0, 400(%r1,%r2)
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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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%val = load float , float *%ptr2
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%res = fpext float %val to double
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ret double %res
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}
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; Test a case where we spill the source of at least one LDEBR. We want
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; to use LDEB if possible.
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define void @f7(double *%ptr1, float *%ptr2) {
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; CHECK-LABEL: f7:
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; CHECK-SCALAR: ldeb {{%f[0-9]+}}, 16{{[04]}}(%r15)
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; CHECK: br %r14
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%val0 = load volatile float , float *%ptr2
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%val1 = load volatile float , float *%ptr2
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%val2 = load volatile float , float *%ptr2
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%val3 = load volatile float , float *%ptr2
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%val4 = load volatile float , float *%ptr2
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%val5 = load volatile float , float *%ptr2
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%val6 = load volatile float , float *%ptr2
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%val7 = load volatile float , float *%ptr2
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%val8 = load volatile float , float *%ptr2
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%val9 = load volatile float , float *%ptr2
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%val10 = load volatile float , float *%ptr2
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%val11 = load volatile float , float *%ptr2
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%val12 = load volatile float , float *%ptr2
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%val13 = load volatile float , float *%ptr2
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%val14 = load volatile float , float *%ptr2
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%val15 = load volatile float , float *%ptr2
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%val16 = load volatile float , float *%ptr2
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%ext0 = fpext float %val0 to double
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%ext1 = fpext float %val1 to double
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%ext2 = fpext float %val2 to double
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%ext3 = fpext float %val3 to double
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%ext4 = fpext float %val4 to double
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%ext5 = fpext float %val5 to double
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%ext6 = fpext float %val6 to double
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%ext7 = fpext float %val7 to double
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%ext8 = fpext float %val8 to double
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%ext9 = fpext float %val9 to double
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%ext10 = fpext float %val10 to double
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%ext11 = fpext float %val11 to double
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%ext12 = fpext float %val12 to double
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%ext13 = fpext float %val13 to double
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%ext14 = fpext float %val14 to double
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%ext15 = fpext float %val15 to double
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%ext16 = fpext float %val16 to double
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store volatile float %val0, float *%ptr2
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store volatile float %val1, float *%ptr2
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store volatile float %val2, float *%ptr2
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store volatile float %val3, float *%ptr2
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store volatile float %val4, float *%ptr2
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store volatile float %val5, float *%ptr2
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store volatile float %val6, float *%ptr2
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store volatile float %val7, float *%ptr2
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store volatile float %val8, float *%ptr2
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store volatile float %val9, float *%ptr2
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store volatile float %val10, float *%ptr2
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store volatile float %val11, float *%ptr2
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store volatile float %val12, float *%ptr2
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store volatile float %val13, float *%ptr2
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store volatile float %val14, float *%ptr2
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store volatile float %val15, float *%ptr2
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store volatile float %val16, float *%ptr2
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store volatile double %ext0, double *%ptr1
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store volatile double %ext1, double *%ptr1
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store volatile double %ext2, double *%ptr1
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store volatile double %ext3, double *%ptr1
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store volatile double %ext4, double *%ptr1
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store volatile double %ext5, double *%ptr1
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store volatile double %ext6, double *%ptr1
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store volatile double %ext7, double *%ptr1
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store volatile double %ext8, double *%ptr1
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store volatile double %ext9, double *%ptr1
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store volatile double %ext10, double *%ptr1
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store volatile double %ext11, double *%ptr1
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store volatile double %ext12, double *%ptr1
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store volatile double %ext13, double *%ptr1
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store volatile double %ext14, double *%ptr1
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store volatile double %ext15, double *%ptr1
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store volatile double %ext16, double *%ptr1
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ret void
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}
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