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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
27 lines
1.0 KiB
LLVM
27 lines
1.0 KiB
LLVM
; The phi should not be eliminated in this case, because the fp op could trap.
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; RUN: llvm-as < %s | opt -simplifycfg | llvm-dis | grep {= phi double}
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
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target triple = "i686-apple-darwin8"
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@G = weak global double 0.000000e+00, align 8 ; <double*> [#uses=2]
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define void @test(i32 %X, i32 %Y, double %Z) {
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entry:
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%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
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%tmp = load double* @G, align 8 ; <double> [#uses=2]
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%tmp3 = icmp eq i32 %X, %Y ; <i1> [#uses=1]
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%tmp34 = zext i1 %tmp3 to i8 ; <i8> [#uses=1]
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%toBool = icmp ne i8 %tmp34, 0 ; <i1> [#uses=1]
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br i1 %toBool, label %cond_true, label %cond_next
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cond_true: ; preds = %entry
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%tmp7 = fadd double %tmp, %Z ; <double> [#uses=1]
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br label %cond_next
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cond_next: ; preds = %cond_true, %entry
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%F.0 = phi double [ %tmp, %entry ], [ %tmp7, %cond_true ] ; <double> [#uses=1]
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store double %F.0, double* @G, align 8
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ret void
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}
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