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9261bd7fe9
This fixes a few BuildMI callsites where the result register was added by using addReg, which is per default a use and therefore an operand register. Also use the zero register as result register when emitting a compare instruction (SUBS with unused result register). llvm-svn: 215997
64 lines
1.4 KiB
LLVM
64 lines
1.4 KiB
LLVM
; RUN: llc < %s -O0 -fast-isel-abort -mtriple=arm64-apple-darwin | FileCheck %s
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define i32 @t1(i32 %c) nounwind readnone {
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entry:
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; CHECK: @t1
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; CHECK: and w0, w0, #0x1
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; CHECK: cmp w0, #0
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; CHECK: csel w0, w{{[0-9]+}}, w{{[0-9]+}}, ne
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%0 = icmp sgt i32 %c, 1
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%1 = select i1 %0, i32 123, i32 357
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ret i32 %1
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}
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define i64 @t2(i32 %c) nounwind readnone {
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entry:
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; CHECK: @t2
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; CHECK: and w0, w0, #0x1
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; CHECK: cmp w0, #0
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; CHECK: csel x0, x{{[0-9]+}}, x{{[0-9]+}}, ne
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%0 = icmp sgt i32 %c, 1
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%1 = select i1 %0, i64 123, i64 357
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ret i64 %1
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}
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define i32 @t3(i1 %c, i32 %a, i32 %b) nounwind readnone {
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entry:
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; CHECK: @t3
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; CHECK: and w0, w0, #0x1
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; CHECK: cmp w0, #0
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; CHECK: csel w0, w{{[0-9]+}}, w{{[0-9]+}}, ne
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%0 = select i1 %c, i32 %a, i32 %b
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ret i32 %0
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}
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define i64 @t4(i1 %c, i64 %a, i64 %b) nounwind readnone {
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entry:
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; CHECK: @t4
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; CHECK: and w0, w0, #0x1
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; CHECK: cmp w0, #0
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; CHECK: csel x0, x{{[0-9]+}}, x{{[0-9]+}}, ne
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%0 = select i1 %c, i64 %a, i64 %b
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ret i64 %0
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}
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define float @t5(i1 %c, float %a, float %b) nounwind readnone {
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entry:
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; CHECK: @t5
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; CHECK: and w0, w0, #0x1
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; CHECK: cmp w0, #0
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; CHECK: fcsel s0, s0, s1, ne
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%0 = select i1 %c, float %a, float %b
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ret float %0
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}
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define double @t6(i1 %c, double %a, double %b) nounwind readnone {
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entry:
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; CHECK: @t6
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; CHECK: and w0, w0, #0x1
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; CHECK: cmp w0, #0
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; CHECK: fcsel d0, d0, d1, ne
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%0 = select i1 %c, double %a, double %b
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ret double %0
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}
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