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cb424d7448dc5ccd1eec482f2d3845d25231c368
RedBear-OS/local/recipes/dev/libclc/source/clang/test/Driver/fast-math.c
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vasilito cb424d7448 build: static patch-sanity linter (shift-left the malformed-patch class) 
verify-patch-sanity.py validates every active recipe .patch has internally-
consistent hunk line counts — catching the 'malformed patch at line N' failure
at commit/CI/preflight time instead of hours into a cook. This cycle hit that
class three times (qtwaylandscanner, sddm, xwayland), each only discovered when
cookbook tried to apply the patch.

Running it across the repo found 29 latent malformed patches (validated against
GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22').
They were harmless only because they sit in vendored recipes (baked, not re-
applied) — but would fail on any version-bump re-derivation. --fix recounts the
hunk headers (body untouched) and repaired all 29.

Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test
(test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats
(empty placeholders, bare-@@ git hunks).
2026-08-01 05:13:02 +03:00

337 lines
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// Test that the GCC fast-math floating point flags get lowered to the correct
// permutation of Clang frontend flags. This is non-trivial for a few reasons.
// First, the GCC flags have many different and surprising effects. Second,
// LLVM only supports three switches which is more coarse grained than GCC's
// support.
//
// Both of them use gcc driver for as.
//
// RUN: %clang -### -fno-honor-infinities -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NINF,NO-NNAN,NO-FINITE-ONLY %s
// infinites [sic] is a supported alternative spelling of infinities.
// RUN: %clang -### -fno-honor-infinites -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NINF,NO-NNAN,NO-FINITE-ONLY %s
//
// RUN: %clang -### -fno-fast-math -fno-honor-infinities -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-FAST,NINF,NO-NNAN,NO-FINITE-ONLY %s
//
// RUN: %clang -### -fno-honor-infinities -fno-fast-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-FAST,NO-NINF,NO-NNAN,NO-FINITE-ONLY %s
//
// RUN: %clang -### -fno-signed-zeros -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NSZ,NOROUNDING %s
//
// RUN: %clang -### -fno-fast-math -fno-signed-zeros -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-FAST,NSZ %s
//
// RUN: %clang -### -fno-signed-zeros -fno-fast-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-FAST,NO-NSZ,NOROUNDING %s
//
// RUN: %clang -### -freciprocal-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,ARCP,NOROUNDING %s
//
// RUN: %clang -### -fno-fast-math -freciprocal-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,ARCP,NOROUNDING %s
//
// RUN: %clang -### -freciprocal-math -fno-fast-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-ARCP,NOROUNDING %s
//
// RUN: %clang -### -fno-honor-nans -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NNAN,NO-NINF,NO-FINITE-ONLY,NOROUNDING %s
//
// RUN: %clang -### -fno-fast-math -fno-honor-nans -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-FAST,NNAN,NO-NINF,NO-FINITE-ONLY,NOROUNDING %s
//
// RUN: %clang -### -fno-honor-nans -fno-fast-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-FAST,NO-NNAN,NO-NINF,NO-FINITE-ONLY,NOROUNDING %s
//
// RUN: %clang -### -ffast-math -fno-approx-func -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-FAST,NINF,NNAN,FINITE-ONLY,NSZ,ARCP,NO-AFN,NO-ERRNO,NOROUNDING %s
//
// RUN: %clang -### -fno-approx-func -ffast-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,FAST,NINF,NNAN,FINITE-ONLY,NSZ,ARCP,AFN,NO-ERRNO,NOROUNDING %s
//
// RUN: %clang -### -fapprox-func -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,AFN %s
//
// RUN: %clang -### -fno-fast-math -fapprox-func -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-FAST,AFN,NOROUNDING %s
//
// RUN: %clang -### -fapprox-func -fno-fast-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-FAST,NO-AFN %s
//
// RUN: %clang -### -fmath-errno -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-FAST,ERRNO %s
//
// RUN: %clang -### -fmath-errno -fno-math-errno -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-ERRNO %s
//
// Target defaults for -fmath-errno (reusing the above checks).
// RUN: %clang -### --target=i686-unknown-linux -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,ERRNO %s
// RUN: %clang -### -target i686-apple-darwin -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-ERRNO %s
// RUN: %clang -### --target=x86_64-unknown-freebsd -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-ERRNO %s
// RUN: %clang -### --target=x86_64-unknown-netbsd -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-ERRNO %s
// RUN: %clang -### --target=x86_64-unknown-openbsd -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-ERRNO %s
// RUN: %clang -### --target=x86_64-unknown-haiku -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-ERRNO %s
// RUN: %clang -### --target=x86_64-unknown-dragonfly -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-ERRNO %s
// RUN: %clang -### --target=x86_64-fuchsia -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-ERRNO %s
// RUN: %clang -### --target=x86_64-linux-android -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-ERRNO %s
// RUN: %clang -### --target=x86_64-linux-musl -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-ERRNO %s
// RUN: %clang -### --target=amdgcn-amd-amdhsa -nogpuinc -nogpulib -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-ERRNO %s
// RUN: %clang -### --target=amdgcn-amd-amdpal -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-ERRNO %s
// RUN: %clang -### --target=amdgcn-mesa-mesa3d -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-ERRNO %s
//
// Check that -ffast-math disables -fmath-errno, and -fno-fast-math merely
// preserves the target default. Also check various flag set operations between
// the two flags. (Resuses above checks.)
// RUN: %clang -### -ffast-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-ERRNO %s
// RUN: %clang -### -fmath-errno -ffast-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-ERRNO %s
// RUN: %clang -### -ffast-math -fmath-errno -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,ERRNO %s
// RUN: %clang -### --target=i686-unknown-linux -fno-fast-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,ERRNO %s
// RUN: %clang -### --target=i686-unknown-linux -fno-math-errno -fno-fast-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,ERRNO %s
// RUN: %clang -### -target i686-apple-darwin -fno-fast-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-ERRNO %s
// RUN: %clang -### -target i686-apple-darwin -fno-math-errno -fno-fast-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-ERRNO %s
// RUN: %clang -### -fno-fast-math -fno-math-errno -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-ERRNO %s
//
// RUN: %clang -### -fno-math-errno -fassociative-math -freciprocal-math \
// RUN: -fno-signed-zeros -fno-trapping-math -fapprox-func -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-ERRNO,UNSAFE,ARCP,NSZ,NO-TRAPPING,REASSOC %s
//
// RUN: %clang -### -fno-fast-math -fno-math-errno -fassociative-math -freciprocal-math \
// RUN: -fno-signed-zeros -fno-trapping-math -fapprox-func -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-ERRNO,UNSAFE,ARCP,NSZ,NO-TRAPPING,REASSOC %s
// The 2nd -fno-fast-math overrides -fassociative-math.
// RUN: %clang -### -fno-fast-math -fno-math-errno -fassociative-math -freciprocal-math \
// RUN: -fno-fast-math -fno-signed-zeros -fno-trapping-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-UNSAFE,NO-REASSOC,NO-ARCP,NSZ,NO-TRAPPING %s
//
// Check that various umbrella flags also enable these frontend options.
// RUN: %clang -### -ffast-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,FAST,NINF,NNAN,FINITE-ONLY,REASSOC,NSZ,ARCP,AFN,CONTRACT-FAST,NO-ERRNO,NOROUNDING %s
// RUN: %clang -### -ffinite-math-only -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NINF,NNAN,FINITE-ONLY %s
// RUN: %clang -### -funsafe-math-optimizations -fno-math-errno -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-FAST,NO-NNAN,NO-NINF,NO-FINITE-ONLY,REASSOC,NSZ,ARCP,AFN,CONTRACT-FAST,NO-ERRNO,NOROUNDING %s
//
// One umbrella flag is *really* weird and also changes the semantics of the
// program by adding a special preprocessor macro. Check that the frontend flag
// modeling this semantic change is provided. Also check that the flag is not
// present if any of the optimizations are disabled.
// RUN: %clang -### -fno-fast-math -ffast-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,FAST,NINF,NNAN,FINITE-ONLY,REASSOC,NSZ,ARCP,AFN,CONTRACT-FAST,NO-ERRNO,NOROUNDING %s
// RUN: %clang -### -funsafe-math-optimizations -ffinite-math-only \
// RUN: -fno-math-errno -ffp-contract=fast -fno-rounding-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,FAST,NINF,NNAN,FINITE-ONLY,NSZ,ARCP,AFN,CONTRACT-FAST,NO-ERRNO,NOROUNDING %s
// RUN: %clang -### -fno-honor-infinities -fno-honor-nans -fno-math-errno \
// RUN: -fassociative-math -freciprocal-math -fno-signed-zeros -fapprox-func \
// RUN: -fno-trapping-math -ffp-contract=fast -fno-rounding-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,FAST,NINF,NNAN,FINITE-ONLY,NSZ,ARCP,AFN,CONTRACT-FAST,NO-ERRNO,NOROUNDING %s
//
// RUN: %clang -### -ffast-math -fno-fast-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-FAST,NO-NINF,NO-NNAN,NO-FINITE-ONLY,NO-REASSOC,NO-NSZ,NO-ARCP,NO-AFN,NOROUNDING %s
// RUN: %clang -### -ffast-math -fno-finite-math-only -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-FAST,NO-NINF,NO-NNAN,NO-FINITE-ONLY,REASSOC,NSZ,ARCP,AFN,CONTRACT-FAST,NOROUNDING %s
// FIXME: This case leaves nnan and ninf. That seems wrong!
// RUN: %clang -### -ffast-math -fno-unsafe-math-optimizations -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-FAST,NINF,NNAN,FINITE-ONLY,NO-REASSOC,NO-NSZ,NO-ARCP,NO-AFN,NOROUNDING,NO-TRAPPING %s
// RUN: %clang -### -ffast-math -fmath-errno -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-FAST,NINF,NNAN,FINITE-ONLY,REASSOC,NSZ,ARCP,AFN,CONTRACT-FAST,ERRNO,NOROUNDING %s
// RUN: %clang -### -ffast-math -fno-associative-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-FAST,NINF,NNAN,FINITE-ONLY,NO-REASSOC,NSZ,ARCP,AFN,CONTRACT-FAST,NO-ERRNO,NOROUNDING %s
//
// Check various means of disabling these flags, including disabling them after
// they've been enabled via an umbrella flag.
// RUN: %clang -### -fno-honor-infinities -fhonor-infinities -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-NINF,NO-NNAN,NO-FINITE-ONLY %s
// RUN: %clang -### -ffinite-math-only -fhonor-infinities -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-NINF,NNAN,NO-FINITE-ONLY %s
// RUN: %clang -### -ffinite-math-only -fno-finite-math-only -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-NINF,NO-NNAN,NO-FINITE-ONLY %s
// RUN: %clang -### -ffast-math -fhonor-infinities -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-FAST,NO-NINF,NNAN,NO-FINITE-ONLY,REASSOC,NSZ,ARCP,AFN,CONTRACT-FAST,NO-ERRNO,NOROUNDING %s
// RUN: %clang -### -ffast-math -fno-finite-math-only -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-FAST,NO-NINF,NO-NNAN,NO-FINITE-ONLY,REASSOC,NSZ,ARCP,AFN,CONTRACT-FAST,NO-ERRNO,NOROUNDING %s
//
// RUN: %clang -### -fno-honor-nans -fhonor-nans -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-NINF,NO-NNAN,NO-FINITE-ONLY %s
// RUN: %clang -### -ffinite-math-only -fhonor-nans -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NINF,NO-NNAN,NO-FINITE-ONLY %s
// RUN: %clang -### -ffinite-math-only -fno-finite-math-only -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-NINF,NO-NNAN,NO-FINITE-ONLY %s
// RUN: %clang -### -ffast-math -fhonor-nans -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NINF,NO-NNAN,NO-FINITE-ONLY %s
// RUN: %clang -### -ffast-math -fno-finite-math-only -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-NINF,NO-NNAN,NO-FINITE-ONLY %s
// A later inverted option overrides an earlier option.
// RUN: %clang -### -fassociative-math -freciprocal-math -fno-signed-zeros \
// RUN: -fno-trapping-math -fno-associative-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-REASSOC,ARCP,NSZ,NO-TRAPPING %s
// RUN: %clang -### -funsafe-math-optimizations -fno-associative-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-UNSAFE,NO-REASSOC,ARCP,NSZ,AFN %s
// RUN: %clang -### -funsafe-math-optimizations -fno-reciprocal-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-UNSAFE,REASSOC,NO-ARCP,NSZ,AFN %s
// reassoc requires nsz
// RUN: %clang -### -funsafe-math-optimizations -fsigned-zeros -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-UNSAFE,NO-REASSOC,ARCP,NO-NSZ,AFN %s
// FIXME: Shouldn't trapping math disable all unsafe math?
// RUN: %clang -### -funsafe-math-optimizations -ftrapping-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-UNSAFE,ARCP,NSZ,AFN,TRAPPING %s
// RUN: %clang -### -funsafe-math-optimizations -fno-unsafe-math-optimizations \
// RUN: -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-UNSAFE,NO-REASSOC,NO-ARCP,NO-NSZ,NO-AFN,NO-TRAPPING %s
// RUN: %clang -### -ffast-math -fno-associative-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-UNSAFE,NO-REASSOC,ARCP,NSZ,AFN %s
// RUN: %clang -### -ffast-math -fno-reciprocal-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-FAST,NO-UNSAFE,NNAN,NINF,FINITE-ONLY,REASSOC,NO-ARCP,CONTRACT-FAST,NSZ,AFN %s
// reassoc requires nsz
// RUN: %clang -### -ffast-math -fsigned-zeros -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-FAST,NO-UNSAFE,NNAN,NINF,FINITE-ONLY,NO-REASSOC,ARCP,CONTRACT-FAST,NO-NSZ,AFN %s
// FIXME: Shouldn't trapping math disable unsafe math?
// RUN: %clang -### -ffast-math -ftrapping-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-FAST,NO-UNSAFE,ARCP,NSZ,AFN,TRAPPING %s
// RUN: %clang -### -ffast-math -fno-unsafe-math-optimizations -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-FAST,NO-UNSAFE,NO-ARCP,NO-NSZ,NO-AFN,NO-TRAPPING %s
// Reassociate is allowed because it does not require reciprocal-math.
// RUN: %clang -### -fassociative-math -freciprocal-math -fno-signed-zeros \
// RUN: -fno-trapping-math -fno-reciprocal-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,REASSOC,NO-ARCP,NSZ,NO-TRAPPING %s
// In these runs, reassociate is not allowed because both no-signed-zeros and no-trapping-math are required.
// RUN: %clang -### -fassociative-math -freciprocal-math -fno-signed-zeros \
// RUN: -fno-trapping-math -fsigned-zeros -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-REASSOC,ARCP,NO-NSZ,NO-TRAPPING %s
// RUN: %clang -### -fassociative-math -freciprocal-math -fno-signed-zeros \
// RUN: -fno-trapping-math -ftrapping-math -c %s 2>&1 \
// RUN: | FileCheck --check-prefixes=CHECK,NO-REASSOC,ARCP,NSZ,TRAPPING %s
// The checks below allow stringing together prefixes to select the expected
// set of cc1 options for any combination of floating-point options.
// This is based on the assumption that the order of the flags when rendered
// is stable, so the negative checks only need to appear where the option would
// appear if used.
// start marker
// CHECK: "-cc1"
// NO-NINF-NOT: "-menable-no-infs"
// NINF-SAME: "-menable-no-infs"
// NO-NNAN-NOT: "-menable-no-nans"
// NNAN-SAME: "-menable-no-nans"
// NO-AFN-NOT: "-fapprox-func"
// AFN-SAME: "-fapprox-func"
// NO-ERRNO-NOT: "-fmath-errno"
// ERRNO-SAME: "-fmath-errno"
// NO-UNSAFE-NOT: "-funsafe-math-optimizations"
// UNSAFE-SAME: "-funsafe-math-optimizations"
// NO-NSZ-NOT: "-fno-signed-zeros"
// NSZ-SAME: "-fno-signed-zeros"
// NO-REASSOC-NOT: "-mreassociate"
// REASSOC-SAME: "-mreassociate"
// NO-ARCP-NOT: "-freciprocal-math"
// ARCP-SAME: "-freciprocal-math"
// NO-DENORM-NOT: "-fdenormal-fp-math"
// DENORM-IEEE-SAME: "-fdenormal-fp-math=ieee,ieee"
// DENORM-PS-SAME: "-fdenormal-fp-math=preserve-sign,preserve-sign"
// DENORM-PZ-SAME: "-fdenormal-fp-math=positive-zero,positive-zero"
// NO-CONTRACT-NOT: "-ffp-contract"
// CONTRACT-OFF-SAME: "-ffp-contract=off"
// CONTRACT-ON-SAME: "-ffp-contract=on"
// CONTRACT-FAST-SAME: "-ffp-contract=fast"
// This one is odd because -frounding-math is the default
// NO-NOROUNDING-NOT: "-fno-rounding-math"
// NOROUNDING-SAME: "-fno-rounding-math"
// NO-TRAPPING-NOT: "-ffp-exception-behavior=strict"
// NO-TRAPPING-NOT: "-ffp-exception-behavior=maytrap"
// TRAPPING-SAME: "-ffp-exception-behavior=strict"
// NO-FAST-NOT: "-ffast-math"
// FAST-SAME: "-ffast-math"
// NO-FINITE-ONLY-NOT: "-ffinite-math-only"
// FINITE-ONLY-SAME: "-ffinite-math-only"
// NO-CX-RANGE-NOT: "-complex-range"
// CX-RANGE-FULL-SAME: "-complex-range=full"
// CX-RANGE-PROMO-SAME: "-complex-range=promoted"
// CX-RANGE-IMPRO-SAME: "-complex-range=improved"
// CX-RANGE-BASIC-SAME: "-complex-range=basic"
// end marker
// CHECK-SAME: "-o"
// This isn't fast-math, but the option is handled in the same place as other FP params.
// Last option wins, and strict behavior is assumed by default.
// RUN: %clang -### -fno-strict-float-cast-overflow -c %s 2>&1 \
// RUN: | FileCheck --check-prefix=CHECK-FPOV-WORKAROUND %s
// CHECK-FPOV-WORKAROUND: "-cc1"
// CHECK-FPOV-WORKAROUND: "-fno-strict-float-cast-overflow"
// RUN: %clang -### -c %s 2>&1 \
// RUN: | FileCheck --check-prefix=CHECK-FPOV-WORKAROUND-DEFAULT %s
// CHECK-FPOV-WORKAROUND-DEFAULT: "-cc1"
// CHECK-FPOV-WORKAROUND-DEFAULT-NOT: "strict-float-cast-overflow"
// RUN: %clang -### -fstrict-float-cast-overflow -c %s 2>&1 \
// RUN: | FileCheck --check-prefix=CHECK-NO-FPOV-WORKAROUND %s
// CHECK-NO-FPOV-WORKAROUND: "-cc1"
// CHECK-NO-FPOV-WORKAROUND-NOT: "strict-float-cast-overflow"
// RUN: %clang -### -fno-strict-float-cast-overflow -fstrict-float-cast-overflow -c %s 2>&1 \
// RUN: | FileCheck --check-prefix=CHECK-NO-FPOV-WORKAROUND-OVERRIDE %s
// CHECK-NO-FPOV-WORKAROUND-OVERRIDE: "-cc1"
// CHECK-NO-FPOV-WORKAROUND-OVERRIDE-NOT: "strict-float-cast-overflow"
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