| ; Test extensions of f32 to f64. |
| ; |
| ; 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 | FileCheck %s |
| |
| ; Check register extension. |
| define double @f1(float %val) { |
| ; CHECK-LABEL: f1: |
| ; CHECK: ldebr %f0, %f0 |
| ; CHECK: br %r14 |
| %res = fpext float %val to double |
| ret double %res |
| } |
| |
| ; Check the low end of the LDEB range. |
| define double @f2(float *%ptr) { |
| ; CHECK-LABEL: f2: |
| ; CHECK: ldeb %f0, 0(%r2) |
| ; CHECK: br %r14 |
| %val = load float , float *%ptr |
| %res = fpext float %val to double |
| ret double %res |
| } |
| |
| ; Check the high end of the aligned LDEB range. |
| define double @f3(float *%base) { |
| ; CHECK-LABEL: f3: |
| ; CHECK: ldeb %f0, 4092(%r2) |
| ; CHECK: br %r14 |
| %ptr = getelementptr float, float *%base, i64 1023 |
| %val = load float , float *%ptr |
| %res = fpext float %val to double |
| ret double %res |
| } |
| |
| ; Check the next word up, which needs separate address logic. |
| ; Other sequences besides this one would be OK. |
| define double @f4(float *%base) { |
| ; CHECK-LABEL: f4: |
| ; CHECK: aghi %r2, 4096 |
| ; CHECK: ldeb %f0, 0(%r2) |
| ; CHECK: br %r14 |
| %ptr = getelementptr float, float *%base, i64 1024 |
| %val = load float , float *%ptr |
| %res = fpext float %val to double |
| ret double %res |
| } |
| |
| ; Check negative displacements, which also need separate address logic. |
| define double @f5(float *%base) { |
| ; CHECK-LABEL: f5: |
| ; CHECK: aghi %r2, -4 |
| ; CHECK: ldeb %f0, 0(%r2) |
| ; CHECK: br %r14 |
| %ptr = getelementptr float, float *%base, i64 -1 |
| %val = load float , float *%ptr |
| %res = fpext float %val to double |
| ret double %res |
| } |
| |
| ; Check that LDEB allows indices. |
| define double @f6(float *%base, i64 %index) { |
| ; CHECK-LABEL: f6: |
| ; CHECK: sllg %r1, %r3, 2 |
| ; CHECK: ldeb %f0, 400(%r1,%r2) |
| ; CHECK: br %r14 |
| %ptr1 = getelementptr float, float *%base, i64 %index |
| %ptr2 = getelementptr float, float *%ptr1, i64 100 |
| %val = load float , float *%ptr2 |
| %res = fpext float %val to double |
| ret double %res |
| } |
| |
| ; Test a case where we spill the source of at least one LDEBR. We want |
| ; to use LDEB if possible. |
| define void @f7(double *%ptr1, float *%ptr2) { |
| ; CHECK-LABEL: f7: |
| ; CHECK-SCALAR: ldeb {{%f[0-9]+}}, 16{{[04]}}(%r15) |
| ; CHECK: br %r14 |
| %val0 = load volatile float , float *%ptr2 |
| %val1 = load volatile float , float *%ptr2 |
| %val2 = load volatile float , float *%ptr2 |
| %val3 = load volatile float , float *%ptr2 |
| %val4 = load volatile float , float *%ptr2 |
| %val5 = load volatile float , float *%ptr2 |
| %val6 = load volatile float , float *%ptr2 |
| %val7 = load volatile float , float *%ptr2 |
| %val8 = load volatile float , float *%ptr2 |
| %val9 = load volatile float , float *%ptr2 |
| %val10 = load volatile float , float *%ptr2 |
| %val11 = load volatile float , float *%ptr2 |
| %val12 = load volatile float , float *%ptr2 |
| %val13 = load volatile float , float *%ptr2 |
| %val14 = load volatile float , float *%ptr2 |
| %val15 = load volatile float , float *%ptr2 |
| %val16 = load volatile float , float *%ptr2 |
| |
| %ext0 = fpext float %val0 to double |
| %ext1 = fpext float %val1 to double |
| %ext2 = fpext float %val2 to double |
| %ext3 = fpext float %val3 to double |
| %ext4 = fpext float %val4 to double |
| %ext5 = fpext float %val5 to double |
| %ext6 = fpext float %val6 to double |
| %ext7 = fpext float %val7 to double |
| %ext8 = fpext float %val8 to double |
| %ext9 = fpext float %val9 to double |
| %ext10 = fpext float %val10 to double |
| %ext11 = fpext float %val11 to double |
| %ext12 = fpext float %val12 to double |
| %ext13 = fpext float %val13 to double |
| %ext14 = fpext float %val14 to double |
| %ext15 = fpext float %val15 to double |
| %ext16 = fpext float %val16 to double |
| |
| store volatile float %val0, float *%ptr2 |
| store volatile float %val1, float *%ptr2 |
| store volatile float %val2, float *%ptr2 |
| store volatile float %val3, float *%ptr2 |
| store volatile float %val4, float *%ptr2 |
| store volatile float %val5, float *%ptr2 |
| store volatile float %val6, float *%ptr2 |
| store volatile float %val7, float *%ptr2 |
| store volatile float %val8, float *%ptr2 |
| store volatile float %val9, float *%ptr2 |
| store volatile float %val10, float *%ptr2 |
| store volatile float %val11, float *%ptr2 |
| store volatile float %val12, float *%ptr2 |
| store volatile float %val13, float *%ptr2 |
| store volatile float %val14, float *%ptr2 |
| store volatile float %val15, float *%ptr2 |
| store volatile float %val16, float *%ptr2 |
| |
| store volatile double %ext0, double *%ptr1 |
| store volatile double %ext1, double *%ptr1 |
| store volatile double %ext2, double *%ptr1 |
| store volatile double %ext3, double *%ptr1 |
| store volatile double %ext4, double *%ptr1 |
| store volatile double %ext5, double *%ptr1 |
| store volatile double %ext6, double *%ptr1 |
| store volatile double %ext7, double *%ptr1 |
| store volatile double %ext8, double *%ptr1 |
| store volatile double %ext9, double *%ptr1 |
| store volatile double %ext10, double *%ptr1 |
| store volatile double %ext11, double *%ptr1 |
| store volatile double %ext12, double *%ptr1 |
| store volatile double %ext13, double *%ptr1 |
| store volatile double %ext14, double *%ptr1 |
| store volatile double %ext15, double *%ptr1 |
| store volatile double %ext16, double *%ptr1 |
| |
| ret void |
| } |