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| author | CoprDistGit <infra@openeuler.org> | 2024-08-01 14:23:42 +0000 |
|---|---|---|
| committer | CoprDistGit <infra@openeuler.org> | 2024-08-01 14:23:42 +0000 |
| commit | 82711f6567ef069eebb942e382e2c3fa61fbf538 (patch) | |
| tree | 22200b7326b32ca672ffb6e4ce6d19a09dc476e5 /gcc48-rh1546728.patch | |
| parent | 5d624aa0d36abe76a344f0593eae5cf36d083b15 (diff) | |
automatic import of compat-libgfortran-48openeuler24.03_LTSopeneuler23.09
Diffstat (limited to 'gcc48-rh1546728.patch')
| -rw-r--r-- | gcc48-rh1546728.patch | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/gcc48-rh1546728.patch b/gcc48-rh1546728.patch new file mode 100644 index 0000000..e9944e5 --- /dev/null +++ b/gcc48-rh1546728.patch @@ -0,0 +1,48 @@ +2015-09-03 Bill Schmidt <wschmidt@linux.vnet.ibm.com> + + * optabs.c (expand_binop): Don't create a broadcast vector with a + source element wider than the inner mode. + + * gcc.target/powerpc/vec-shift.c: New test. + +--- gcc/optabs.c ++++ gcc/optabs.c +@@ -1608,6 +1608,15 @@ expand_binop (machine_mode mode, optab binoptab, rtx op0, rtx op1, + + if (otheroptab && optab_handler (otheroptab, mode) != CODE_FOR_nothing) + { ++ /* The scalar may have been extended to be too wide. Truncate ++ it back to the proper size to fit in the broadcast vector. */ ++ machine_mode inner_mode = GET_MODE_INNER (mode); ++ if (!CONST_INT_P (op1) ++ && (GET_MODE_BITSIZE (inner_mode) ++ < GET_MODE_BITSIZE (GET_MODE (op1)))) ++ op1 = force_reg (inner_mode, ++ simplify_gen_unary (TRUNCATE, inner_mode, op1, ++ GET_MODE (op1))); + rtx vop1 = expand_vector_broadcast (mode, op1); + if (vop1) + { +--- /dev/null ++++ gcc/testsuite/gcc.target/powerpc/vec-shift.c +@@ -0,0 +1,20 @@ ++/* { dg-do compile { target { powerpc*-*-* } } } */ ++/* { dg-require-effective-target powerpc_altivec_ok } */ ++/* { dg-skip-if "" { powerpc*-*-darwin* } { "*" } { "" } } */ ++/* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power7" } } */ ++/* { dg-options "-mcpu=power7 -O2" } */ ++ ++/* This used to ICE. During gimplification, "i" is widened to an unsigned ++ int. We used to fail at expand time as we tried to cram an SImode item ++ into a QImode memory slot. This has been fixed to properly truncate the ++ shift amount when splatting it into a vector. */ ++ ++typedef unsigned char v16ui __attribute__((vector_size(16))); ++ ++v16ui vslb(v16ui v, unsigned char i) ++{ ++ return v << i; ++} ++ ++/* { dg-final { scan-assembler "vspltb" } } */ ++/* { dg-final { scan-assembler "vslb" } } */ |