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d6c329532b
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70176 91177308-0d34-0410-b5e6-96231b3b80d8
127 lines
3.8 KiB
LLVM
127 lines
3.8 KiB
LLVM
; RUN: llvm-as < %s | opt -indvars
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; PR4052
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; PR4054
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; Don't treat an and with 0 as a mask (trunc+zext).
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define i32 @int80(i8 signext %p_71) nounwind {
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entry:
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br label %bb
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bb: ; preds = %bb6, %entry
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%p_71_addr.0 = phi i8 [ %p_71, %entry ], [ %0, %bb6 ] ; <i8> [#uses=0]
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br i1 false, label %bb4, label %bb1
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bb1: ; preds = %bb
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ret i32 0
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bb4: ; preds = %bb4, %bb
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br i1 false, label %bb6, label %bb4
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bb6: ; preds = %bb4
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%0 = and i8 0, 0 ; <i8> [#uses=1]
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br label %bb
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}
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@x = common global i32 0 ; <i32*> [#uses=1]
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define signext i8 @safe_sub_func_int32_t_s_s(i32 %_si1, i8 signext %_si2) nounwind {
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entry:
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%_si1_addr = alloca i32 ; <i32*> [#uses=3]
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%_si2_addr = alloca i8 ; <i8*> [#uses=3]
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%retval = alloca i32 ; <i32*> [#uses=2]
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%0 = alloca i32 ; <i32*> [#uses=2]
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%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
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store i32 %_si1, i32* %_si1_addr
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store i8 %_si2, i8* %_si2_addr
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%1 = load i8* %_si2_addr, align 1 ; <i8> [#uses=1]
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%2 = sext i8 %1 to i32 ; <i32> [#uses=1]
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%3 = load i32* %_si1_addr, align 4 ; <i32> [#uses=1]
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%4 = xor i32 %2, %3 ; <i32> [#uses=1]
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%5 = load i8* %_si2_addr, align 1 ; <i8> [#uses=1]
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%6 = sext i8 %5 to i32 ; <i32> [#uses=1]
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%7 = sub i32 7, %6 ; <i32> [#uses=1]
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%8 = load i32* %_si1_addr, align 4 ; <i32> [#uses=1]
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%9 = shl i32 %8, %7 ; <i32> [#uses=1]
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%10 = and i32 %4, %9 ; <i32> [#uses=1]
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%11 = icmp slt i32 %10, 0 ; <i1> [#uses=1]
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%12 = zext i1 %11 to i32 ; <i32> [#uses=1]
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store i32 %12, i32* %0, align 4
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%13 = load i32* %0, align 4 ; <i32> [#uses=1]
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store i32 %13, i32* %retval, align 4
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br label %return
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return: ; preds = %entry
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%retval1 = load i32* %retval ; <i32> [#uses=1]
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%retval12 = trunc i32 %retval1 to i8 ; <i8> [#uses=1]
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ret i8 %retval12
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}
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define i32 @safe_sub_func_uint64_t_u_u(i32 %_ui1, i32 %_ui2) nounwind {
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entry:
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%_ui1_addr = alloca i32 ; <i32*> [#uses=2]
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%_ui2_addr = alloca i32 ; <i32*> [#uses=1]
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%retval = alloca i32 ; <i32*> [#uses=2]
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%0 = alloca i32 ; <i32*> [#uses=2]
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%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
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store i32 %_ui1, i32* %_ui1_addr
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store i32 %_ui2, i32* %_ui2_addr
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%1 = load i32* %_ui1_addr, align 4 ; <i32> [#uses=1]
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%2 = sub i32 %1, 1 ; <i32> [#uses=1]
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store i32 %2, i32* %0, align 4
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%3 = load i32* %0, align 4 ; <i32> [#uses=1]
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store i32 %3, i32* %retval, align 4
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br label %return
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return: ; preds = %entry
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%retval1 = load i32* %retval ; <i32> [#uses=1]
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ret i32 %retval1
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}
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define void @int87(i8 signext %p_48, i8 signext %p_49) nounwind {
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entry:
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%p_48_addr = alloca i8 ; <i8*> [#uses=1]
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%p_49_addr = alloca i8 ; <i8*> [#uses=1]
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%l_52 = alloca i32 ; <i32*> [#uses=7]
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%vol.0 = alloca i32 ; <i32*> [#uses=1]
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%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
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store i8 %p_48, i8* %p_48_addr
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store i8 %p_49, i8* %p_49_addr
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br label %bb4
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bb: ; preds = %bb4
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%0 = volatile load i32* @x, align 4 ; <i32> [#uses=1]
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store i32 %0, i32* %vol.0, align 4
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store i32 0, i32* %l_52, align 4
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br label %bb2
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bb1: ; preds = %bb2
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%1 = load i32* %l_52, align 4 ; <i32> [#uses=1]
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%2 = call i32 @safe_sub_func_uint64_t_u_u(i32 %1, i32 1) nounwind ; <i32> [#uses=1]
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store i32 %2, i32* %l_52, align 4
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br label %bb2
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bb2: ; preds = %bb1, %bb
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%3 = load i32* %l_52, align 4 ; <i32> [#uses=1]
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%4 = icmp eq i32 %3, 0 ; <i1> [#uses=1]
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br i1 %4, label %bb1, label %bb3
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bb3: ; preds = %bb2
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%5 = load i32* %l_52, align 4 ; <i32> [#uses=1]
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%6 = call signext i8 @safe_sub_func_int32_t_s_s(i32 %5, i8 signext 1) nounwind ; <i8> [#uses=1]
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%7 = sext i8 %6 to i32 ; <i32> [#uses=1]
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store i32 %7, i32* %l_52, align 4
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br label %bb4
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bb4: ; preds = %bb3, %entry
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%8 = load i32* %l_52, align 4 ; <i32> [#uses=1]
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%9 = icmp ne i32 %8, 0 ; <i1> [#uses=1]
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br i1 %9, label %bb, label %bb5
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bb5: ; preds = %bb4
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br label %return
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return: ; preds = %bb5
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ret void
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}
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