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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
58 lines
1.5 KiB
LLVM
58 lines
1.5 KiB
LLVM
; RUN: llvm-as < %s | opt -scalarrepl | llvm-dis | not grep alloca
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; PR3290
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;; Store of integer to whole alloca struct.
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define i32 @test1(i64 %V) nounwind {
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%X = alloca {{i32, i32}}
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%Y = bitcast {{i32,i32}}* %X to i64*
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store i64 %V, i64* %Y
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%A = getelementptr {{i32,i32}}* %X, i32 0, i32 0, i32 0
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%B = getelementptr {{i32,i32}}* %X, i32 0, i32 0, i32 1
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%a = load i32* %A
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%b = load i32* %B
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%c = add i32 %a, %b
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ret i32 %c
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}
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;; Store of integer to whole struct/array alloca.
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define float @test2(i128 %V) nounwind {
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%X = alloca {[4 x float]}
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%Y = bitcast {[4 x float]}* %X to i128*
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store i128 %V, i128* %Y
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%A = getelementptr {[4 x float]}* %X, i32 0, i32 0, i32 0
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%B = getelementptr {[4 x float]}* %X, i32 0, i32 0, i32 3
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%a = load float* %A
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%b = load float* %B
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%c = fadd float %a, %b
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ret float %c
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}
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;; Load of whole alloca struct as integer
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define i64 @test3(i32 %a, i32 %b) nounwind {
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%X = alloca {{i32, i32}}
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%A = getelementptr {{i32,i32}}* %X, i32 0, i32 0, i32 0
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%B = getelementptr {{i32,i32}}* %X, i32 0, i32 0, i32 1
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store i32 %a, i32* %A
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store i32 %b, i32* %B
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%Y = bitcast {{i32,i32}}* %X to i64*
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%Z = load i64* %Y
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ret i64 %Z
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}
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;; load of integer from whole struct/array alloca.
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define i128 @test4(float %a, float %b) nounwind {
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%X = alloca {[4 x float]}
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%A = getelementptr {[4 x float]}* %X, i32 0, i32 0, i32 0
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%B = getelementptr {[4 x float]}* %X, i32 0, i32 0, i32 3
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store float %a, float* %A
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store float %b, float* %B
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%Y = bitcast {[4 x float]}* %X to i128*
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%V = load i128* %Y
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ret i128 %V
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}
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