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6cd018d0bc
While we're at it - don't copy vreg implicit operands while rematerializing. This fixes PR12138. llvm-svn: 151779
59 lines
2.0 KiB
LLVM
59 lines
2.0 KiB
LLVM
; RUN: llc -O1 <%s
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; PR12138
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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-n8:16:32-S128"
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target triple = "i386-apple-macosx10.7.0"
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%struct.S0 = type { i8, i32 }
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@d = external global [2 x [2 x %struct.S0]], align 4
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@c = external global i32, align 4
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@e = external global i32, align 4
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@b = external global i32, align 4
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@a = external global i32, align 4
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define void @fn2() nounwind optsize ssp {
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entry:
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store i64 0, i64* bitcast ([2 x [2 x %struct.S0]]* @d to i64*), align 4
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%0 = load i32* @c, align 4
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%tobool2 = icmp eq i32 %0, 0
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%1 = load i32* @a, align 4
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%tobool4 = icmp eq i32 %1, 0
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br label %for.cond
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for.cond: ; preds = %if.end, %entry
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%f.1.0 = phi i32 [ undef, %entry ], [ %sub, %if.end ]
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%g.0 = phi i64 [ 0, %entry ], [ %ins, %if.end ]
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%tobool = icmp eq i32 %f.1.0, 0
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br i1 %tobool, label %for.end, label %for.body
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for.body: ; preds = %for.cond
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%2 = lshr i64 %g.0, 32
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%conv = trunc i64 %2 to i16
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br i1 %tobool2, label %lor.rhs, label %lor.end
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lor.rhs: ; preds = %for.body
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store i32 1, i32* @e, align 4
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br label %lor.end
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lor.end: ; preds = %lor.rhs, %for.body
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%xor.i = xor i16 %conv, 1
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%p1.lobit.i8 = lshr i64 %g.0, 47
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%p1.lobit.i8.tr = trunc i64 %p1.lobit.i8 to i16
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%p1.lobit.i = and i16 %p1.lobit.i8.tr, 1
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%and.i = and i16 %p1.lobit.i, %xor.i
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%3 = xor i16 %and.i, 1
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%sub.conv.i = sub i16 %conv, %3
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%conv3 = sext i16 %sub.conv.i to i32
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store i32 %conv3, i32* @b, align 4
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br i1 %tobool4, label %if.end, label %for.end
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if.end: ; preds = %lor.end
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%mask = and i64 %g.0, -256
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%ins = or i64 %mask, 1
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%sub = add nsw i32 %f.1.0, -1
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br label %for.cond
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for.end: ; preds = %lor.end, %for.cond
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ret void
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}
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