forked from OSchip/llvm-project
44 lines
1.6 KiB
LLVM
44 lines
1.6 KiB
LLVM
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; RUN: llc -asm-verbose=false < %s | FileCheck %s
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; PR26063
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target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
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target triple = "armv7--linux-gnueabihf"
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; CHECK: .LBB0_1:
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; CHECK-NEXT: bl f{{$}}
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; CHECK-NEXT: ldrb r[[T0:[0-9]+]], [r{{[0-9]+}}, #1]!{{$}}
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; CHECK-NEXT: cmp r{{[0-9]+}}, #1{{$}}
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; CHECK-NEXT: cmpne r[[T0]], #0{{$}}
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; CHECK-NEXT: bne .LBB0_1{{$}}
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define i8* @h(i8* readonly %a, i32 %b, i32 %c) {
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entry:
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%0 = load i8, i8* %a, align 1
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%tobool4 = icmp ne i8 %0, 0
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%cmp5 = icmp ne i32 %b, 1
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%1 = and i1 %cmp5, %tobool4
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br i1 %1, label %while.body.preheader, label %while.end
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while.body.preheader: ; preds = %entry
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br label %while.body
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while.body: ; preds = %while.body.preheader, %while.body
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%a.addr.06 = phi i8* [ %incdec.ptr, %while.body ], [ %a, %while.body.preheader ]
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%call = tail call i32 bitcast (i32 (...)* @f to i32 ()*)()
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%incdec.ptr = getelementptr inbounds i8, i8* %a.addr.06, i32 1
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%2 = load i8, i8* %incdec.ptr, align 1
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%tobool = icmp ne i8 %2, 0
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%cmp = icmp ne i32 %call, 1
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%3 = and i1 %cmp, %tobool
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br i1 %3, label %while.body, label %while.end.loopexit
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while.end.loopexit: ; preds = %while.body
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%incdec.ptr.lcssa = phi i8* [ %incdec.ptr, %while.body ]
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br label %while.end
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while.end: ; preds = %while.end.loopexit, %entry
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%a.addr.0.lcssa = phi i8* [ %a, %entry ], [ %incdec.ptr.lcssa, %while.end.loopexit ]
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ret i8* %a.addr.0.lcssa
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}
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declare i32 @f(...)
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