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56 lines
1.3 KiB
LLVM
56 lines
1.3 KiB
LLVM
; RUN: opt < %s -instcombine -S | not grep itofp
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define i1 @test1(i8 %A) {
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%B = sitofp i8 %A to double
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%C = fcmp ult double %B, 128.0
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ret i1 %C ; True!
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}
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define i1 @test2(i8 %A) {
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%B = sitofp i8 %A to double
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%C = fcmp ugt double %B, -128.1
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ret i1 %C ; True!
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}
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define i1 @test3(i8 %A) {
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%B = sitofp i8 %A to double
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%C = fcmp ule double %B, 127.0
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ret i1 %C ; true!
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}
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define i1 @test4(i8 %A) {
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%B = sitofp i8 %A to double
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%C = fcmp ult double %B, 127.0
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ret i1 %C ; A != 127
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}
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define i32 @test5(i32 %A) {
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%B = sitofp i32 %A to double
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%C = fptosi double %B to i32
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%D = uitofp i32 %C to double
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%E = fptoui double %D to i32
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ret i32 %E
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}
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define i32 @test6(i32 %A) {
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%B = and i32 %A, 7 ; <i32> [#uses=1]
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%C = and i32 %A, 32 ; <i32> [#uses=1]
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%D = sitofp i32 %B to double ; <double> [#uses=1]
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%E = sitofp i32 %C to double ; <double> [#uses=1]
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%F = fadd double %D, %E ; <double> [#uses=1]
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%G = fptosi double %F to i32 ; <i32> [#uses=1]
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ret i32 %G
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}
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define i32 @test7(i32 %a) nounwind {
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%b = sitofp i32 %a to double ; <double> [#uses=1]
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%c = fptoui double %b to i32 ; <i32> [#uses=1]
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ret i32 %c
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}
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define i32 @test8(i32 %a) nounwind {
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%b = uitofp i32 %a to double ; <double> [#uses=1]
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%c = fptosi double %b to i32 ; <i32> [#uses=1]
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ret i32 %c
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}
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