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https://github.com/c64scene-ar/llvm-6502.git
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709b33dc78
(I think it's reasonably clear that we want to have a canonical form for constructs like this; if anyone thinks that a select is not the best canonical form, please tell me.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75531 91177308-0d34-0410-b5e6-96231b3b80d8
32 lines
534 B
LLVM
32 lines
534 B
LLVM
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep {zext } | count 0
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define i32 @a(i1 %x) {
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entry:
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%y = zext i1 %x to i32
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%res = add i32 %y, 1
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ret i32 %res
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}
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define i32 @b(i1 %x) {
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entry:
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%y = zext i1 %x to i32
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%res = add i32 %y, -1
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ret i32 %res
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}
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define i32 @c(i1 %x) {
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entry:
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%y = zext i1 %x to i32
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%res = sub i32 0, %y
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ret i32 %res
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}
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define i32 @d(i1 %x) {
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entry:
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%y = zext i1 %x to i32
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%res = sub i32 3, %y
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ret i32 %res
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}
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