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; An integer truncation to bool should be done with an and instruction to make
; sure only the LSBit survives. Test that this is the case both for a returned
; value and as the operand of a branch.
; RUN: llvm-as < %s | llc -march=x86 &&
; RUN: llvm-as < %s | llc -march=x86 | grep '\(and\)\|\(test.*\$1\)' | \
; RUN: wc -l | grep 6
define bool %test1(i32 %X) zext {
%Y = trunc i32 %X to bool
ret bool %Y
}
define bool %test2(i32 %val, i32 %mask) {
entry:
%mask = trunc i32 %mask to i8
%shifted = ashr i32 %val, i8 %mask
%anded = and i32 %shifted, 1
%trunced = trunc i32 %anded to bool
br bool %trunced, label %ret_true, label %ret_false
ret_true:
ret bool true
ret_false:
ret bool false
}
define i32 %test3(i8* %ptr) {
%val = load i8* %ptr
%tmp = trunc i8 %val to bool
br bool %tmp, label %cond_true, label %cond_false
cond_true:
ret i32 21
cond_false:
ret i32 42
}
define i32 %test4(i8* %ptr) {
%tmp = ptrtoint i8* %ptr to bool
br bool %tmp, label %cond_true, label %cond_false
cond_true:
ret i32 21
cond_false:
ret i32 42
}
define i32 %test5(float %f) {
%tmp = fptoui float %f to bool
br bool %tmp, label %cond_true, label %cond_false
cond_true:
ret i32 21
cond_false:
ret i32 42
}
define i32 %test6(double %d) {
%tmp = fptosi double %d to bool
br bool %tmp, label %cond_true, label %cond_false
cond_true:
ret i32 21
cond_false:
ret i32 42
}
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