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Diffstat (limited to 'llvm/test/Transforms/Float2Int/basic.ll')
-rw-r--r-- | llvm/test/Transforms/Float2Int/basic.ll | 267 |
1 files changed, 0 insertions, 267 deletions
diff --git a/llvm/test/Transforms/Float2Int/basic.ll b/llvm/test/Transforms/Float2Int/basic.ll deleted file mode 100644 index 573714dbfb2..00000000000 --- a/llvm/test/Transforms/Float2Int/basic.ll +++ /dev/null @@ -1,267 +0,0 @@ -; RUN: opt < %s -float2int -S | FileCheck %s -; RUN: opt < %s -passes='float2int' -S | FileCheck %s - -; -; Positive tests -; - -; CHECK-LABEL: @simple1 -; CHECK: %1 = zext i8 %a to i32 -; CHECK: %2 = add i32 %1, 1 -; CHECK: %3 = trunc i32 %2 to i16 -; CHECK: ret i16 %3 -define i16 @simple1(i8 %a) { - %1 = uitofp i8 %a to float - %2 = fadd float %1, 1.0 - %3 = fptoui float %2 to i16 - ret i16 %3 -} - -; CHECK-LABEL: @simple2 -; CHECK: %1 = zext i8 %a to i32 -; CHECK: %2 = sub i32 %1, 1 -; CHECK: %3 = trunc i32 %2 to i8 -; CHECK: ret i8 %3 -define i8 @simple2(i8 %a) { - %1 = uitofp i8 %a to float - %2 = fsub float %1, 1.0 - %3 = fptoui float %2 to i8 - ret i8 %3 -} - -; CHECK-LABEL: @simple3 -; CHECK: %1 = zext i8 %a to i32 -; CHECK: %2 = sub i32 %1, 1 -; CHECK: ret i32 %2 -define i32 @simple3(i8 %a) { - %1 = uitofp i8 %a to float - %2 = fsub float %1, 1.0 - %3 = fptoui float %2 to i32 - ret i32 %3 -} - -; CHECK-LABEL: @cmp -; CHECK: %1 = zext i8 %a to i32 -; CHECK: %2 = zext i8 %b to i32 -; CHECK: %3 = icmp slt i32 %1, %2 -; CHECK: ret i1 %3 -define i1 @cmp(i8 %a, i8 %b) { - %1 = uitofp i8 %a to float - %2 = uitofp i8 %b to float - %3 = fcmp ult float %1, %2 - ret i1 %3 -} - -; CHECK-LABEL: @simple4 -; CHECK: %1 = zext i32 %a to i64 -; CHECK: %2 = add i64 %1, 1 -; CHECK: %3 = trunc i64 %2 to i32 -; CHECK: ret i32 %3 -define i32 @simple4(i32 %a) { - %1 = uitofp i32 %a to double - %2 = fadd double %1, 1.0 - %3 = fptoui double %2 to i32 - ret i32 %3 -} - -; CHECK-LABEL: @simple5 -; CHECK: %1 = zext i8 %a to i32 -; CHECK: %2 = zext i8 %b to i32 -; CHECK: %3 = add i32 %1, 1 -; CHECK: %4 = mul i32 %3, %2 -; CHECK: ret i32 %4 -define i32 @simple5(i8 %a, i8 %b) { - %1 = uitofp i8 %a to float - %2 = uitofp i8 %b to float - %3 = fadd float %1, 1.0 - %4 = fmul float %3, %2 - %5 = fptoui float %4 to i32 - ret i32 %5 -} - -; The two chains don't interact - failure of one shouldn't -; cause failure of the other. - -; CHECK-LABEL: @multi1 -; CHECK: %1 = zext i8 %a to i32 -; CHECK: %2 = zext i8 %b to i32 -; CHECK: %fc = uitofp i8 %c to float -; CHECK: %x1 = add i32 %1, %2 -; CHECK: %z = fadd float %fc, %d -; CHECK: %w = fptoui float %z to i32 -; CHECK: %r = add i32 %x1, %w -; CHECK: ret i32 %r -define i32 @multi1(i8 %a, i8 %b, i8 %c, float %d) { - %fa = uitofp i8 %a to float - %fb = uitofp i8 %b to float - %fc = uitofp i8 %c to float - %x = fadd float %fa, %fb - %y = fptoui float %x to i32 - %z = fadd float %fc, %d - %w = fptoui float %z to i32 - %r = add i32 %y, %w - ret i32 %r -} - -; CHECK-LABEL: @simple_negzero -; CHECK: %1 = zext i8 %a to i32 -; CHECK: %2 = add i32 %1, 0 -; CHECK: %3 = trunc i32 %2 to i16 -; CHECK: ret i16 %3 -define i16 @simple_negzero(i8 %a) { - %1 = uitofp i8 %a to float - %2 = fadd fast float %1, -0.0 - %3 = fptoui float %2 to i16 - ret i16 %3 -} - -; CHECK-LABEL: @simple_negative -; CHECK: %1 = sext i8 %call to i32 -; CHECK: %mul1 = mul i32 %1, -3 -; CHECK: %2 = trunc i32 %mul1 to i8 -; CHECK: %conv3 = sext i8 %2 to i32 -; CHECK: ret i32 %conv3 -define i32 @simple_negative(i8 %call) { - %conv1 = sitofp i8 %call to float - %mul = fmul float %conv1, -3.000000e+00 - %conv2 = fptosi float %mul to i8 - %conv3 = sext i8 %conv2 to i32 - ret i32 %conv3 -} - -; -; Negative tests -; - -; CHECK-LABEL: @neg_multi1 -; CHECK: %fa = uitofp i8 %a to float -; CHECK: %fc = uitofp i8 %c to float -; CHECK: %x = fadd float %fa, %fc -; CHECK: %y = fptoui float %x to i32 -; CHECK: %z = fadd float %fc, %d -; CHECK: %w = fptoui float %z to i32 -; CHECK: %r = add i32 %y, %w -; CHECK: ret i32 %r -; The two chains intersect, which means because one fails, no -; transform can occur. -define i32 @neg_multi1(i8 %a, i8 %b, i8 %c, float %d) { - %fa = uitofp i8 %a to float - %fc = uitofp i8 %c to float - %x = fadd float %fa, %fc - %y = fptoui float %x to i32 - %z = fadd float %fc, %d - %w = fptoui float %z to i32 - %r = add i32 %y, %w - ret i32 %r -} - -; CHECK-LABEL: @neg_muld -; CHECK: %fa = uitofp i32 %a to double -; CHECK: %fb = uitofp i32 %b to double -; CHECK: %mul = fmul double %fa, %fb -; CHECK: %r = fptoui double %mul to i64 -; CHECK: ret i64 %r -; The i32 * i32 = i64, which has 64 bits, which is greater than the 52 bits -; that can be exactly represented in a double. -define i64 @neg_muld(i32 %a, i32 %b) { - %fa = uitofp i32 %a to double - %fb = uitofp i32 %b to double - %mul = fmul double %fa, %fb - %r = fptoui double %mul to i64 - ret i64 %r -} - -; CHECK-LABEL: @neg_mulf -; CHECK: %fa = uitofp i16 %a to float -; CHECK: %fb = uitofp i16 %b to float -; CHECK: %mul = fmul float %fa, %fb -; CHECK: %r = fptoui float %mul to i32 -; CHECK: ret i32 %r -; The i16 * i16 = i32, which can't be represented in a float, but can in a -; double. This should fail, as the written code uses floats, not doubles so -; the original result may be inaccurate. -define i32 @neg_mulf(i16 %a, i16 %b) { - %fa = uitofp i16 %a to float - %fb = uitofp i16 %b to float - %mul = fmul float %fa, %fb - %r = fptoui float %mul to i32 - ret i32 %r -} - -; CHECK-LABEL: @neg_cmp -; CHECK: %1 = uitofp i8 %a to float -; CHECK: %2 = uitofp i8 %b to float -; CHECK: %3 = fcmp false float %1, %2 -; CHECK: ret i1 %3 -; "false" doesn't have an icmp equivalent. -define i1 @neg_cmp(i8 %a, i8 %b) { - %1 = uitofp i8 %a to float - %2 = uitofp i8 %b to float - %3 = fcmp false float %1, %2 - ret i1 %3 -} - -; CHECK-LABEL: @neg_div -; CHECK: %1 = uitofp i8 %a to float -; CHECK: %2 = fdiv float %1, 1.0 -; CHECK: %3 = fptoui float %2 to i16 -; CHECK: ret i16 %3 -; Division isn't a supported operator. -define i16 @neg_div(i8 %a) { - %1 = uitofp i8 %a to float - %2 = fdiv float %1, 1.0 - %3 = fptoui float %2 to i16 - ret i16 %3 -} - -; CHECK-LABEL: @neg_remainder -; CHECK: %1 = uitofp i8 %a to float -; CHECK: %2 = fadd float %1, 1.2 -; CHECK: %3 = fptoui float %2 to i16 -; CHECK: ret i16 %3 -; 1.2 is not an integer. -define i16 @neg_remainder(i8 %a) { - %1 = uitofp i8 %a to float - %2 = fadd float %1, 1.25 - %3 = fptoui float %2 to i16 - ret i16 %3 -} - -; CHECK-LABEL: @neg_toolarge -; CHECK: %1 = uitofp i80 %a to fp128 -; CHECK: %2 = fadd fp128 %1, %1 -; CHECK: %3 = fptoui fp128 %2 to i80 -; CHECK: ret i80 %3 -; i80 > i64, which is the largest bitwidth handleable by default. -define i80 @neg_toolarge(i80 %a) { - %1 = uitofp i80 %a to fp128 - %2 = fadd fp128 %1, %1 - %3 = fptoui fp128 %2 to i80 - ret i80 %3 -} - -; CHECK-LABEL: @neg_calluser -; CHECK: sitofp -; CHECK: fcmp -; The sequence %1..%3 cannot be converted because %4 uses %2. -define i32 @neg_calluser(i32 %value) { - %1 = sitofp i32 %value to double - %2 = fadd double %1, 1.0 - %3 = fcmp olt double %2, 0.000000e+00 - %4 = tail call double @g(double %2) - %5 = fptosi double %4 to i32 - %6 = zext i1 %3 to i32 - %7 = add i32 %6, %5 - ret i32 %7 -} -declare double @g(double) - -; CHECK-LABEL: @neg_vector -; CHECK: %1 = uitofp <4 x i8> %a to <4 x float> -; CHECK: %2 = fptoui <4 x float> %1 to <4 x i16> -; CHECK: ret <4 x i16> %2 -define <4 x i16> @neg_vector(<4 x i8> %a) { - %1 = uitofp <4 x i8> %a to <4 x float> - %2 = fptoui <4 x float> %1 to <4 x i16> - ret <4 x i16> %2 -} |