forked from OSchip/llvm-project
43 lines
1.1 KiB
LLVM
43 lines
1.1 KiB
LLVM
; RUN: llc < %s -march=x86
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; PR2775
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define i32 @func_77(i8 zeroext %p_79) nounwind {
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entry:
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%0 = tail call i32 (...)* @func_43(i32 1) nounwind ; <i32> [#uses=1]
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%1 = icmp eq i32 %0, 0 ; <i1> [#uses=1]
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br i1 %1, label %bb3, label %bb
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bb: ; preds = %entry
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br label %bb3
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bb3: ; preds = %bb, %entry
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%p_79_addr.0 = phi i8 [ 0, %bb ], [ %p_79, %entry ] ; <i8> [#uses=1]
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%2 = zext i8 %p_79_addr.0 to i32 ; <i32> [#uses=2]
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%3 = zext i1 false to i32 ; <i32> [#uses=2]
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%4 = tail call i32 (...)* @rshift_u_s(i32 1) nounwind ; <i32> [#uses=0]
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%5 = lshr i32 %2, %2 ; <i32> [#uses=3]
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%6 = icmp eq i32 0, 0 ; <i1> [#uses=1]
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br i1 %6, label %bb6, label %bb9
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bb6: ; preds = %bb3
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%7 = ashr i32 %5, %3 ; <i32> [#uses=1]
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%8 = icmp eq i32 %7, 0 ; <i1> [#uses=1]
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%9 = select i1 %8, i32 %3, i32 0 ; <i32> [#uses=1]
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%. = shl i32 %5, %9 ; <i32> [#uses=1]
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br label %bb9
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bb9: ; preds = %bb6, %bb3
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%.0 = phi i32 [ %., %bb6 ], [ %5, %bb3 ] ; <i32> [#uses=0]
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br i1 false, label %return, label %bb10
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bb10: ; preds = %bb9
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ret i32 undef
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return: ; preds = %bb9
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ret i32 undef
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}
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declare i32 @func_43(...)
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declare i32 @rshift_u_s(...)
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