mirror of
https://github.com/c64scene-ar/llvm-6502.git
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ae3a0be92e
integer and floating-point opcodes, introducing FAdd, FSub, and FMul. For now, the AsmParser, BitcodeReader, and IRBuilder all preserve backwards compatability, and the Core LLVM APIs preserve backwards compatibility for IR producers. Most front-ends won't need to change immediately. This implements the first step of the plan outlined here: http://nondot.org/sabre/LLVMNotes/IntegerOverflow.txt git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72897 91177308-0d34-0410-b5e6-96231b3b80d8
56 lines
1.3 KiB
LLVM
56 lines
1.3 KiB
LLVM
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | 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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