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c2695eba57
rewrite the comparison if there is any implicit extension or truncation on the induction variable. I'm planning for IVUsers to eventually take over some of the work of this code, and for it to be generalized. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72496 91177308-0d34-0410-b5e6-96231b3b80d8
59 lines
2.2 KiB
LLVM
59 lines
2.2 KiB
LLVM
; RUN: llvm-as < %s | llc
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; PR4222
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
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target triple = "x86_64-pc-linux-gnu"
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module asm ".ident\09\22$FreeBSD: head/sys/amd64/amd64/minidump_machdep.c 184499 2008-10-31 10:11:35Z kib $\22"
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%struct.dumperinfo = type <{ i32 (i8*, i8*, i64, i64, i64)*, i8*, i32, i32, i64, i64 }>
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define void @minidumpsys(%struct.dumperinfo* %di) nounwind {
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entry:
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br label %if.end
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if.end: ; preds = %if.end52, %entry
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br label %for.cond.i.preheader
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for.cond.i.preheader: ; preds = %if.end52, %if.end
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%indvar688 = phi i64 [ 0, %if.end ], [ %indvar.next689, %if.end52 ] ; <i64> [#uses=3]
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%tmp690 = shl i64 %indvar688, 12 ; <i64> [#uses=1]
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%pa.0642 = add i64 %tmp690, 0 ; <i64> [#uses=1]
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%indvar688703 = trunc i64 %indvar688 to i32 ; <i32> [#uses=1]
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%tmp692693 = add i32 %indvar688703, 1 ; <i32> [#uses=1]
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%phitmp = sext i32 %tmp692693 to i64 ; <i64> [#uses=1]
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br i1 false, label %if.end52, label %land.lhs.true.i
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land.lhs.true.i: ; preds = %for.cond.i.preheader
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%shr2.i = lshr i64 %pa.0642, 18 ; <i64> [#uses=0]
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unreachable
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if.end52: ; preds = %for.cond.i.preheader
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%phitmp654 = icmp ult i64 %phitmp, 512 ; <i1> [#uses=1]
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%indvar.next689 = add i64 %indvar688, 1 ; <i64> [#uses=1]
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br i1 %phitmp654, label %for.cond.i.preheader, label %if.end
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}
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define void @promote(%struct.dumperinfo* %di) nounwind {
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entry:
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br label %if.end
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if.end: ; preds = %if.end52, %entry
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br label %for.cond.i.preheader
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for.cond.i.preheader: ; preds = %if.end52, %if.end
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%indvar688 = phi i32 [ 0, %if.end ], [ %indvar.next689, %if.end52 ] ; <i64> [#uses=3]
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%tmp690 = shl i32 %indvar688, 12 ; <i64> [#uses=1]
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%pa.0642 = add i32 %tmp690, 0 ; <i64> [#uses=1]
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%tmp692693 = add i32 %indvar688, 1 ; <i32> [#uses=1]
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%phitmp = sext i32 %tmp692693 to i64 ; <i64> [#uses=1]
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br i1 false, label %if.end52, label %land.lhs.true.i
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land.lhs.true.i: ; preds = %for.cond.i.preheader
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%shr2.i = lshr i32 %pa.0642, 18 ; <i64> [#uses=0]
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unreachable
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if.end52: ; preds = %for.cond.i.preheader
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%phitmp654 = icmp ult i64 %phitmp, 512 ; <i1> [#uses=1]
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%indvar.next689 = add i32 %indvar688, 1 ; <i64> [#uses=1]
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br i1 %phitmp654, label %for.cond.i.preheader, label %if.end
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}
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