llvm/test/Transforms/IndVarSimplify/avoid-i0.ll
Dan Gohman f2f6ce65b7 Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81537 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11 18:01:28 +00:00

127 lines
3.8 KiB
LLVM

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