1 ; An integer truncation to i1 should be done with an and instruction to make
2 ; sure only the LSBit survives. Test that this is the case both for a returned
3 ; value and as the operand of a branch.
4 ; RUN: llvm-as < %s | llc -march=x86 &&
5 ; RUN: llvm-as < %s | llc -march=x86 | grep '\(and\)\|\(test.*\$1\)' | \
8 define i1 @test1(i32 %X) zext {
9 %Y = trunc i32 %X to i1
13 define i1 @test2(i32 %val, i32 %mask) {
15 %mask = trunc i32 %mask to i8
16 %shifted = ashr i32 %val, i8 %mask
17 %anded = and i32 %shifted, 1
18 %trunced = trunc i32 %anded to i1
19 br i1 %trunced, label %ret_true, label %ret_false
26 define i32 @test3(i8* %ptr) {
28 %tmp = trunc i8 %val to i1
29 br i1 %tmp, label %cond_true, label %cond_false
36 define i32 @test4(i8* %ptr) {
37 %tmp = ptrtoint i8* %ptr to i1
38 br i1 %tmp, label %cond_true, label %cond_false
45 define i32 @test5(float %f) {
46 %tmp = fptoui float %f to i1
47 br i1 %tmp, label %cond_true, label %cond_false
54 define i32 @test6(double %d) {
55 %tmp = fptosi double %d to i1
56 br i1 %tmp, label %cond_true, label %cond_false