mirror of
https://github.com/c64scene-ar/llvm-6502.git
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103 lines
3.0 KiB
LLVM
103 lines
3.0 KiB
LLVM
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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declare double @llvm.fma.f64(double %f1, double %f2, double %f3)
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define double @f1(double %f1, double %f2, double %acc) {
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; CHECK: f1:
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; CHECK: madbr %f4, %f0, %f2
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; CHECK: ldr %f0, %f4
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; CHECK: br %r14
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%res = call double @llvm.fma.f64 (double %f1, double %f2, double %acc)
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ret double %res
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}
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define double @f2(double %f1, double *%ptr, double %acc) {
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; CHECK: f2:
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; CHECK: madb %f2, %f0, 0(%r2)
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%f2 = load double *%ptr
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%res = call double @llvm.fma.f64 (double %f1, double %f2, double %acc)
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ret double %res
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}
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define double @f3(double %f1, double *%base, double %acc) {
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; CHECK: f3:
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; CHECK: madb %f2, %f0, 4088(%r2)
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%ptr = getelementptr double *%base, i64 511
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%f2 = load double *%ptr
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%res = call double @llvm.fma.f64 (double %f1, double %f2, double %acc)
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ret double %res
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}
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define double @f4(double %f1, double *%base, double %acc) {
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; The important thing here is that we don't generate an out-of-range
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; displacement. Other sequences besides this one would be OK.
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;
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; CHECK: f4:
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; CHECK: aghi %r2, 4096
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; CHECK: madb %f2, %f0, 0(%r2)
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%ptr = getelementptr double *%base, i64 512
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%f2 = load double *%ptr
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%res = call double @llvm.fma.f64 (double %f1, double %f2, double %acc)
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ret double %res
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}
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define double @f5(double %f1, double *%base, double %acc) {
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; Here too the important thing is that we don't generate an out-of-range
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; displacement. Other sequences besides this one would be OK.
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;
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; CHECK: f5:
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; CHECK: aghi %r2, -8
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; CHECK: madb %f2, %f0, 0(%r2)
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%ptr = getelementptr double *%base, i64 -1
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%f2 = load double *%ptr
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%res = call double @llvm.fma.f64 (double %f1, double %f2, double %acc)
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ret double %res
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}
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define double @f6(double %f1, double *%base, i64 %index, double %acc) {
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; CHECK: f6:
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; CHECK: sllg %r1, %r3, 3
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; CHECK: madb %f2, %f0, 0(%r1,%r2)
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%ptr = getelementptr double *%base, i64 %index
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%f2 = load double *%ptr
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%res = call double @llvm.fma.f64 (double %f1, double %f2, double %acc)
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ret double %res
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}
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define double @f7(double %f1, double *%base, i64 %index, double %acc) {
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; CHECK: f7:
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; CHECK: sllg %r1, %r3, 3
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; CHECK: madb %f2, %f0, 4088({{%r1,%r2|%r2,%r1}})
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%index2 = add i64 %index, 511
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%ptr = getelementptr double *%base, i64 %index2
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%f2 = load double *%ptr
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%res = call double @llvm.fma.f64 (double %f1, double %f2, double %acc)
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ret double %res
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}
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define double @f8(double %f1, double *%base, i64 %index, double %acc) {
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; CHECK: f8:
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; CHECK: sllg %r1, %r3, 3
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; CHECK: lay %r1, 4096({{%r1,%r2|%r2,%r1}})
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; CHECK: madb %f2, %f0, 0(%r1)
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%index2 = add i64 %index, 512
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%ptr = getelementptr double *%base, i64 %index2
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%f2 = load double *%ptr
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%res = call double @llvm.fma.f64 (double %f1, double %f2, double %acc)
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ret double %res
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}
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