1 ; Test extensions of f32 to f64. 2 ; 3 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 \ 4 ; RUN: | FileCheck -check-prefix=CHECK -check-prefix=CHECK-SCALAR %s 5 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s 6 7 ; Check register extension. 8 define double @f1(float %val) { 9 ; CHECK-LABEL: f1: 10 ; CHECK: ldebr %f0, %f0 11 ; CHECK: br %r14 12 %res = fpext float %val to double 13 ret double %res 14 } 15 16 ; Check the low end of the LDEB range. 17 define double @f2(float *%ptr) { 18 ; CHECK-LABEL: f2: 19 ; CHECK: ldeb %f0, 0(%r2) 20 ; CHECK: br %r14 21 %val = load float, float *%ptr 22 %res = fpext float %val to double 23 ret double %res 24 } 25 26 ; Check the high end of the aligned LDEB range. 27 define double @f3(float *%base) { 28 ; CHECK-LABEL: f3: 29 ; CHECK: ldeb %f0, 4092(%r2) 30 ; CHECK: br %r14 31 %ptr = getelementptr float, float *%base, i64 1023 32 %val = load float, float *%ptr 33 %res = fpext float %val to double 34 ret double %res 35 } 36 37 ; Check the next word up, which needs separate address logic. 38 ; Other sequences besides this one would be OK. 39 define double @f4(float *%base) { 40 ; CHECK-LABEL: f4: 41 ; CHECK: aghi %r2, 4096 42 ; CHECK: ldeb %f0, 0(%r2) 43 ; CHECK: br %r14 44 %ptr = getelementptr float, float *%base, i64 1024 45 %val = load float, float *%ptr 46 %res = fpext float %val to double 47 ret double %res 48 } 49 50 ; Check negative displacements, which also need separate address logic. 51 define double @f5(float *%base) { 52 ; CHECK-LABEL: f5: 53 ; CHECK: aghi %r2, -4 54 ; CHECK: ldeb %f0, 0(%r2) 55 ; CHECK: br %r14 56 %ptr = getelementptr float, float *%base, i64 -1 57 %val = load float, float *%ptr 58 %res = fpext float %val to double 59 ret double %res 60 } 61 62 ; Check that LDEB allows indices. 63 define double @f6(float *%base, i64 %index) { 64 ; CHECK-LABEL: f6: 65 ; CHECK: sllg %r1, %r3, 2 66 ; CHECK: ldeb %f0, 400(%r1,%r2) 67 ; CHECK: br %r14 68 %ptr1 = getelementptr float, float *%base, i64 %index 69 %ptr2 = getelementptr float, float *%ptr1, i64 100 70 %val = load float, float *%ptr2 71 %res = fpext float %val to double 72 ret double %res 73 } 74 75
