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Diffstat (limited to 'test/Transforms/InstCombine/sitofp.ll')
| -rw-r--r-- | test/Transforms/InstCombine/sitofp.ll | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/sitofp.ll b/test/Transforms/InstCombine/sitofp.ll new file mode 100644 index 0000000..bd31b89 --- /dev/null +++ b/test/Transforms/InstCombine/sitofp.ll @@ -0,0 +1,55 @@ +; RUN: opt < %s -instcombine -S | not grep itofp + +define i1 @test1(i8 %A) { + %B = sitofp i8 %A to double + %C = fcmp ult double %B, 128.0 + ret i1 %C ; True! +} +define i1 @test2(i8 %A) { + %B = sitofp i8 %A to double + %C = fcmp ugt double %B, -128.1 + ret i1 %C ; True! +} + +define i1 @test3(i8 %A) { + %B = sitofp i8 %A to double + %C = fcmp ule double %B, 127.0 + ret i1 %C ; true! +} + +define i1 @test4(i8 %A) { + %B = sitofp i8 %A to double + %C = fcmp ult double %B, 127.0 + ret i1 %C ; A != 127 +} + +define i32 @test5(i32 %A) { + %B = sitofp i32 %A to double + %C = fptosi double %B to i32 + %D = uitofp i32 %C to double + %E = fptoui double %D to i32 + ret i32 %E +} + +define i32 @test6(i32 %A) { + %B = and i32 %A, 7 ; <i32> [#uses=1] + %C = and i32 %A, 32 ; <i32> [#uses=1] + %D = sitofp i32 %B to double ; <double> [#uses=1] + %E = sitofp i32 %C to double ; <double> [#uses=1] + %F = fadd double %D, %E ; <double> [#uses=1] + %G = fptosi double %F to i32 ; <i32> [#uses=1] + ret i32 %G +} + +define i32 @test7(i32 %a) nounwind { + %b = sitofp i32 %a to double ; <double> [#uses=1] + %c = fptoui double %b to i32 ; <i32> [#uses=1] + ret i32 %c +} + +define i32 @test8(i32 %a) nounwind { + %b = uitofp i32 %a to double ; <double> [#uses=1] + %c = fptosi double %b to i32 ; <i32> [#uses=1] + ret i32 %c +} + |