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34 lines
606 B
LLVM
34 lines
606 B
LLVM
; This test makes sure that these instructions are properly eliminated.
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;
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; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep rem
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implementation
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int %test1(int %A) {
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%B = rem int %A, 1 ; ISA constant 0
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ret int %B
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}
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int %test2(int %A) { ; 0 % X = 0, we don't need ot preserve traps
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%B = rem int 0, %A
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ret int %B
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}
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uint %test3(uint %A) {
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%B = rem uint %A, 8 ; & 7
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ret uint %B
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}
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bool %test3(int %A) {
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%B = rem int %A, -8 ; & 7
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%C = setne int %B, 0
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ret bool %C
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}
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uint %test4(uint %X, bool %C) {
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%V = select bool %C, uint 1, uint 8
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%R = rem uint %X, %V
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ret uint %R
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}
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