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| author | Claudiu Zissulescu <claziss@synopsys.com> | 2018-06-13 10:54:09 +0200 |
|---|---|---|
| committer | Claudiu Zissulescu <claziss@gcc.gnu.org> | 2018-06-13 10:54:09 +0200 |
| commit | 8c191c89cfde7c74955c21d488702077cca89117 (patch) | |
| tree | ac431bc7cbacdc4a4453a803a387a451f3a478c9 /gcc | |
| parent | 16493b5771cf3b1670a4a9bf7c7426fd74b727d0 (diff) | |
| download | gcc-8c191c89cfde7c74955c21d488702077cca89117.zip gcc-8c191c89cfde7c74955c21d488702077cca89117.tar.gz gcc-8c191c89cfde7c74955c21d488702077cca89117.tar.bz2 | |
[ARC] Update fma expansions.
Accept at most a single constant for fma patterns.
gcc/
2018-03-21 Claudiu Zissulescu <claziss@synopsys.com>
* config/arc/fpu.md (fmasf4): Force operand to register.
(fnmasf4): Likewise.
gcc/testsuite
2018-03-21 Claudiu Zissulescu <claziss@synopsys.com>
* gcc.target/arc/fma-1.c: New test.
From-SVN: r261543
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/arc/fpu.md | 6 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/arc/fma-1.c | 13 |
4 files changed, 28 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index ce7197b..34eb1d9 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2018-06-12 Claudiu Zissulescu <claziss@synopsys.com> + * config/arc/fpu.md (fmasf4): Force operand to register. + (fnmasf4): Likewise. + +2018-06-12 Claudiu Zissulescu <claziss@synopsys.com> + * config/arc/arc-protos.h (arc_pad_return): Remove. * config/arc/arc.c (machine_function): Remove force_short_suffix and size_reason. diff --git a/gcc/config/arc/fpu.md b/gcc/config/arc/fpu.md index 5c56f76..66a4d91 100644 --- a/gcc/config/arc/fpu.md +++ b/gcc/config/arc/fpu.md @@ -64,6 +64,9 @@ tmp = gen_rtx_REG (SFmode, ACCL_REGNO); emit_move_insn (tmp, operands[3]); operands[3] = tmp; + if (!register_operand (operands[1], SFmode) + && !register_operand (operands[2], SFmode)) + operands[2] = force_reg (SFmode, operands[2]); }") (define_expand "fnmasf4" @@ -77,6 +80,9 @@ tmp = gen_rtx_REG (SFmode, ACCL_REGNO); emit_move_insn (tmp, operands[3]); operands[3] = tmp; + if (!register_operand (operands[1], SFmode) + && !register_operand (operands[2], SFmode)) + operands[2] = force_reg (SFmode, operands[2]); }") (define_insn "fmasf4_fpu" diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 572424d..cb680c7 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,9 @@ 2018-06-12 Claudiu Zissulescu <claziss@synopsys.com> + * gcc.target/arc/fma-1.c: New test. + +2018-06-12 Claudiu Zissulescu <claziss@synopsys.com> + * gcc.target/arc/pr9001107555.c: New file. 2018-06-12 Richard Sandiford <richard.sandiford@linaro.org> diff --git a/gcc/testsuite/gcc.target/arc/fma-1.c b/gcc/testsuite/gcc.target/arc/fma-1.c new file mode 100644 index 0000000..c195ad9 --- /dev/null +++ b/gcc/testsuite/gcc.target/arc/fma-1.c @@ -0,0 +1,13 @@ +/* { dg-do compile } */ +/* { dg-skip-if "FPU not available" { arc700 || arc6xx } } */ +/* { dg-options "-s -std=gnu11 -O2 -frounding-math -mfpu=fpus_all" } */ + +const float a, b = 7.8539818525e01; + +/* Check if the fma operation is generated correctly. */ + +int foo (void) +{ + return (float)3.0 * b + a; +} +/* { dg-final { scan-assembler "fsmadd" } } */ |