9690b30ba9
Implement operators `<=` and `>=` to explicitly check the comparison results to be `cmpLessThan` or `cmpEqual` instead of negating the result of `operators<`. Fixes #85947
131 lines
3.6 KiB
Python
131 lines
3.6 KiB
Python
"""
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Test floating point expressions with zero, NaN, dernormalized and infinite
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numbers.
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"""
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import lldb
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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class FPNaNTestCase(TestBase):
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def setUp(self):
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# Call super's setUp().
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TestBase.setUp(self)
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# Find the line number to break inside main().
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self.line = line_number("main.cpp", "// Set break point at this line.")
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def test(self):
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self.build()
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exe = self.getBuildArtifact("a.out")
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self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
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# Break inside the main.
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lldbutil.run_break_set_by_file_and_line(
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self, "main.cpp", self.line, num_expected_locations=1
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)
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self.runCmd("run", RUN_SUCCEEDED)
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# Zero and denorm
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self.expect(
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"expr +0.0",
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VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["double", "0"],
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)
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self.expect(
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"expr -0.0",
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VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["double", "0"],
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)
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self.expect(
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"expr 0.0 / 0",
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VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["double", "NaN"],
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)
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self.expect(
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"expr 0 / 0.0",
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VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["double", "NaN"],
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)
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self.expect(
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"expr 1 / +0.0",
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VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["double", "+Inf"],
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)
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self.expect(
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"expr 1 / -0.0",
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VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["double", "-Inf"],
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)
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self.expect(
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"expr +0.0 / +0.0 != +0.0 / +0.0",
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VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["bool", "true"],
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)
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self.expect(
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"expr -1.f * 0",
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VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["float", "-0"],
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)
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self.expect(
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"expr 0x0.123p-1",
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VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["double", "0.0355224609375"],
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)
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# NaN
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self.expect(
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"expr fnan < fnan",
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VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["bool", "false"],
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)
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self.expect(
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"expr fnan <= fnan",
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VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["bool", "false"],
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)
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self.expect(
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"expr fnan > fnan",
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VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["bool", "false"],
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)
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self.expect(
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"expr fnan >= fnan",
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VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["bool", "false"],
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)
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self.expect(
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"expr fnan == fnan",
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VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["bool", "false"],
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)
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self.expect(
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"expr fnan != fnan",
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VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["bool", "true"],
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)
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self.expect(
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"expr 1.0 <= fnan",
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VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["bool", "false"],
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)
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self.expect(
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"expr 1.0f < fnan",
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VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["bool", "false"],
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)
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self.expect(
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"expr 1.0f != fnan",
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VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["bool", "true"],
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)
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self.expect(
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"expr (unsigned int) fdenorm",
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VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["int", "0"],
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)
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self.expect(
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"expr (unsigned int) (1.0f + fdenorm)",
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VARIABLES_DISPLAYED_CORRECTLY,
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substrs=["int", "1"],
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)
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