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https://github.com/c64scene-ar/llvm-6502.git
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05bd43dc6e
If a loop predecessor has an invoke as its terminator, and the return value from that invoke is used to determine the loop iteration space, then we can't insert a computation based on that value in the loop predecessor prior to the terminator (oops). If there's such an invoke, or just no predecessor for that matter, insert a new loop preheader. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228488 91177308-0d34-0410-b5e6-96231b3b80d8
51 lines
1.9 KiB
LLVM
51 lines
1.9 KiB
LLVM
; RUN: llc -mcpu=pwr7 < %s | FileCheck %s
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target datalayout = "E-m:e-i64:64-n32:64"
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target triple = "powerpc64-unknown-linux-gnu"
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@.str1 = external unnamed_addr constant [1 x i8], align 1
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@.str2 = external unnamed_addr constant [39 x i8], align 1
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declare void @_ZN13CStdOutStreamlsEPKc()
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declare void @_ZN13CStdOutStream5FlushEv()
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declare i32 @__gxx_personality_v0(...)
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define void @_Z11GetPasswordP13CStdOutStreamb() {
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entry:
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br label %for.cond.i.i
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for.cond.i.i: ; preds = %for.cond.i.i, %entry
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br i1 undef, label %_ZN11CStringBaseIcEC2EPKc.exit.critedge, label %for.cond.i.i
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_ZN11CStringBaseIcEC2EPKc.exit.critedge: ; preds = %for.cond.i.i
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invoke void @_ZN13CStdOutStreamlsEPKc()
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to label %invoke.cont unwind label %lpad
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invoke.cont: ; preds = %_ZN11CStringBaseIcEC2EPKc.exit.critedge
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invoke void @_ZN13CStdOutStream5FlushEv()
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to label %invoke.cont4 unwind label %lpad
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invoke.cont4: ; preds = %invoke.cont
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%call7 = invoke i8* @getpass()
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to label %for.cond.i.i30 unwind label %lpad
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; CHECK-LABEL: @_Z11GetPasswordP13CStdOutStreamb
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; CHECK: addi {{[0-9]+}}, 3, -1
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for.cond.i.i30: ; preds = %for.cond.i.i30, %invoke.cont4
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%indvars.iv.i.i26 = phi i64 [ %indvars.iv.next.i.i29, %for.cond.i.i30 ], [ 0, %invoke.cont4 ]
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%arrayidx.i.i27 = getelementptr inbounds i8* %call7, i64 %indvars.iv.i.i26
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%0 = load i8* %arrayidx.i.i27, align 1
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%indvars.iv.next.i.i29 = add nuw nsw i64 %indvars.iv.i.i26, 1
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br label %for.cond.i.i30
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lpad: ; preds = %invoke.cont4, %invoke.cont, %_ZN11CStringBaseIcEC2EPKc.exit.critedge
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%1 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
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cleanup
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resume { i8*, i32 } undef
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}
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declare i8* @getpass()
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