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https://github.com/c64scene-ar/llvm-6502.git
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3237f88882
Convert >= 1 to > 0, etc. Using comparison with zero isn't a win on its own, but it exposes more opportunities for CC reuse (the next patch). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187571 91177308-0d34-0410-b5e6-96231b3b80d8
177 lines
4.4 KiB
LLVM
177 lines
4.4 KiB
LLVM
; Test 64-bit signed comparisons in which the second operand is a constant.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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; Check comparisons with 0.
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define double @f1(double %a, double %b, i64 %i1) {
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; CHECK-LABEL: f1:
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; CHECK: cgijl %r2, 0
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%cond = icmp slt i64 %i1, 0
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check comparisons with 1.
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define double @f2(double %a, double %b, i64 %i1) {
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; CHECK-LABEL: f2:
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; CHECK: cgijle %r2, 0
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%cond = icmp slt i64 %i1, 1
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the high end of the CGIJ range.
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define double @f3(double %a, double %b, i64 %i1) {
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; CHECK-LABEL: f3:
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; CHECK: cgijl %r2, 127
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%cond = icmp slt i64 %i1, 127
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the next value up, which must use CGHI instead.
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define double @f4(double %a, double %b, i64 %i1) {
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; CHECK-LABEL: f4:
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; CHECK: cghi %r2, 128
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; CHECK-NEXT: jl
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%cond = icmp slt i64 %i1, 128
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the high end of the CGHI range.
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define double @f5(double %a, double %b, i64 %i1) {
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; CHECK-LABEL: f5:
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; CHECK: cghi %r2, 32767
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; CHECK-NEXT: jl
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%cond = icmp slt i64 %i1, 32767
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the next value up, which must use CGFI.
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define double @f6(double %a, double %b, i64 %i1) {
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; CHECK-LABEL: f6:
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; CHECK: cgfi %r2, 32768
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; CHECK-NEXT: jl
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%cond = icmp slt i64 %i1, 32768
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the high end of the CGFI range.
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define double @f7(double %a, double %b, i64 %i1) {
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; CHECK-LABEL: f7:
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; CHECK: cgfi %r2, 2147483647
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; CHECK-NEXT: jl
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%cond = icmp slt i64 %i1, 2147483647
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the next value up, which must use register comparison.
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define double @f8(double %a, double %b, i64 %i1) {
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; CHECK-LABEL: f8:
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; CHECK: cgrjl
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%cond = icmp slt i64 %i1, 2147483648
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the high end of the negative CGIJ range.
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define double @f9(double %a, double %b, i64 %i1) {
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; CHECK-LABEL: f9:
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; CHECK: cgijl %r2, -1
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%cond = icmp slt i64 %i1, -1
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the low end of the CGIJ range.
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define double @f10(double %a, double %b, i64 %i1) {
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; CHECK-LABEL: f10:
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; CHECK: cgijl %r2, -128
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%cond = icmp slt i64 %i1, -128
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the next value down, which must use CGHI instead.
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define double @f11(double %a, double %b, i64 %i1) {
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; CHECK-LABEL: f11:
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; CHECK: cghi %r2, -129
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; CHECK-NEXT: jl
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%cond = icmp slt i64 %i1, -129
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the low end of the CGHI range.
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define double @f12(double %a, double %b, i64 %i1) {
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; CHECK-LABEL: f12:
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; CHECK: cghi %r2, -32768
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; CHECK-NEXT: jl
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%cond = icmp slt i64 %i1, -32768
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the next value down, which must use CGFI instead.
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define double @f13(double %a, double %b, i64 %i1) {
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; CHECK-LABEL: f13:
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; CHECK: cgfi %r2, -32769
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; CHECK-NEXT: jl
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%cond = icmp slt i64 %i1, -32769
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the low end of the CGFI range.
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define double @f14(double %a, double %b, i64 %i1) {
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; CHECK-LABEL: f14:
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; CHECK: cgfi %r2, -2147483648
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; CHECK-NEXT: jl
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%cond = icmp slt i64 %i1, -2147483648
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the next value down, which must use register comparison.
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define double @f15(double %a, double %b, i64 %i1) {
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; CHECK-LABEL: f15:
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; CHECK: cgrjl
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%cond = icmp slt i64 %i1, -2147483649
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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