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llvm-project/clang/test/CodeGen/ffp-contract-option.c

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Add -ffp-contract = { fast | on | off } command line option support. This flag sets the 'fp-contract' mode, which controls the formation of fused floating point operations. Available modes are: - Fast: Form fused operations anywhere. - On: Form fused operations where allowed by FP_CONTRACT. This is the default mode. - Off: Don't form fused operations (in future this may be relaxed to forming fused operations where it can be proved that the result won't be affected). Currently clang doesn't support the FP_CONTRACT pragma, so the 'On' and 'Off' modes are equivalent. llvm-svn: 159794
2012-07-06 08:59:19 +08:00
// RUN: %clang_cc1 -O3 -ffp-contract=fast -triple=powerpc-apple-darwin10 -S -o - %s | FileCheck %s
clang/test/CodeGen/fp-contract.c: It requires ppc32! llvm-svn: 159816
2012-07-06 19:11:27 +08:00
// REQUIRES: ppc32-registered-target
Add -ffp-contract = { fast | on | off } command line option support. This flag sets the 'fp-contract' mode, which controls the formation of fused floating point operations. Available modes are: - Fast: Form fused operations anywhere. - On: Form fused operations where allowed by FP_CONTRACT. This is the default mode. - Off: Don't form fused operations (in future this may be relaxed to forming fused operations where it can be proved that the result won't be affected). Currently clang doesn't support the FP_CONTRACT pragma, so the 'On' and 'Off' modes are equivalent. llvm-svn: 159794
2012-07-06 08:59:19 +08:00
float fma_test1(float a, float b, float c) {
// CHECK: fmadds
float x = a * b;
float y = x + c;
return y;
}