[PATCH v1] testsuite: Split out known-misaligned V2QI store target [PR124342] [PR124619]
Torbjörn Svensson via Sourceware Forge <[email protected]>
| Newsgroups | gmane.comp.gcc.patches |
|---|---|
| Message-ID | <[email protected]> |
From: Torbjörn SVENSSON <[email protected]> vect_slp_v2qi_store_unalign tests whether the vectorizer handles a V2QI store through a byte-aligned base, but some -Wstringop-overflow tests instead depend on a V2QI store at a known one-byte misalignment from a defined object. These two variants are not the same on armv7ve with -mfloat-abi=hard. Add a separate effective target for the latter case. PR testsuite/124342 PR testsuite/124619 gcc/ChangeLog: * doc/sourcebuild.texi (vect_slp_v2qi_store_unalign): Document. (vect_slp_v2qi_store_misalign): Likewise. gcc/testsuite/ChangeLog: * lib/target-supports.exp (check_vect_slp_store_usage): Add TEST_V2QI_MISALIGN. (check_effective_target_vect_slp_v2qi_store_misalign): New proc. * c-c++-common/Wstringop-overflow-2.c: Use it. * g++.dg/warn/Wstringop-overflow-3.C: Likewise. Signed-off-by: Torbjörn SVENSSON <[email protected]> --- I've tested this change on top of r17-2833-g32657f29f91871 and r16-9480-g967a69a03886ebd6. Ok for trunk and releases/gcc-16? -- vect_slp_v2qi_store_unalign tests whether the vectorizer handles a V2QI store through a byte-aligned base, but some -Wstringop-overflow tests instead depend on a V2QI store at a known one-byte misalignment from a defined object. These two variants are not the same on armv7ve with -mfloat-abi=hard. Add a separate effective target for the latter case. PR testsuite/124342 PR testsuite/124619 gcc/ChangeLog: * doc/sourcebuild.texi (vect_slp_v2qi_store_unalign): Document. (vect_slp_v2qi_store_misalign): Likewise. gcc/testsuite/ChangeLog: * lib/target-supports.exp (check_vect_slp_store_usage): Add TEST_V2QI_MISALIGN. (check_effective_target_vect_slp_v2qi_store_misalign): New proc. * c-c++-common/Wstringop-overflow-2.c: Use it. * g++.dg/warn/Wstringop-overflow-3.C: Likewise. Signed-off-by: Torbjörn SVENSSON <[email protected]> -- This is a forge pull request published on the gcc-patches mailing list mailing list as requested by Torbjörn Svensson via Sourceware Forge <[email protected]>. Forge discussion: https://forge.sourceware.org/gcc/gcc/pulls/215 Get it locally using: ``` git fetch forge-upstream "+refs/versioned_pull/215/*:refs/versioned_pull/215/*" git switch -c "pr-215-v1" "refs/versioned_pull/215/1/head" ``` Or, download the patch at: https://forge.sourceware.org/gcc/gcc/pulls/215.diff Created on: 2026-08-10 17:42:02+00:00 Latest update: 2026-08-10 18:03:02+00:00 Changes: 4 changed files, 77 additions, 47 deletions Head revision: azoff/gcc ref pr/Wstringop-overflow commit 1a3f4342b3ffa28514704ca226fdef1fda46a477 Base revision: gcc/gcc ref trunk commit 32657f29f918712ad7110bd54d8ebb3bf6b0a2a8 r17-2833-g32657f29f91871 Merge base: 32657f29f918712ad7110bd54d8ebb3bf6b0a2a8 Requested Reviewers: Changed files: - M: gcc/doc/sourcebuild.texi - M: gcc/testsuite/c-c++-common/Wstringop-overflow-2.c - M: gcc/testsuite/g++.dg/warn/Wstringop-overflow-3.C - M: gcc/testsuite/lib/target-supports.exp gcc/doc/sourcebuild.texi | 8 +++ .../c-c++-common/Wstringop-overflow-2.c | 50 +++++++++---------- .../g++.dg/warn/Wstringop-overflow-3.C | 44 ++++++++-------- gcc/testsuite/lib/target-supports.exp | 22 ++++++++ 4 files changed, 77 insertions(+), 47 deletions(-) diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi index 2c41583ced51e..a0e78a7ca3395 100644 --- a/gcc/doc/sourcebuild.texi +++ b/gcc/doc/sourcebuild.texi @@ -1946,6 +1946,14 @@ Target supports loop vectorization with partial vectors and Target supports vectorization of 2-byte char stores with 2-byte aligned address at plain @option{-O2}. +@item vect_slp_v2qi_store_unalign +Target supports vectorization of 2-byte char stores with an unaligned +address at plain @option{-O2}. + +@item vect_slp_v2qi_store_misalign +Target supports vectorization of 2-byte char stores at a known one-byte +misaligned address at plain @option{-O2}. + @item vect_slp_v4qi_store_align Target supports vectorization of 4-byte char stores with 4-byte aligned address at plain @option{-O2}. diff --git a/gcc/testsuite/c-c++-common/Wstringop-overflow-2.c b/gcc/testsuite/c-c++-common/Wstringop-overflow-2.c index 3f9171947c252..4b0e443f28852 100644 --- a/gcc/testsuite/c-c++-common/Wstringop-overflow-2.c +++ b/gcc/testsuite/c-c++-common/Wstringop-overflow-2.c @@ -19,7 +19,7 @@ struct Ax ax_; void gax_ (void) { ax_.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" } - ax_.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + ax_.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } ax_.a[2] = 2; // { dg-warning "\\\[-Wstringop-overflow" } } @@ -30,7 +30,7 @@ struct Ax ax0 = { 0 }; void gax0 (void) { ax0.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" } - ax0.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + ax0.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } ax0.a[2] = 2; // { dg-warning "\\\[-Wstringop-overflow" } } @@ -41,7 +41,7 @@ struct Ax ax0_ = { 0, { } }; void gax0_ (void) { ax0_.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" } - ax0_.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + ax0_.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } ax0_.a[2] = 2; // { dg-warning "\\\[-Wstringop-overflow" } } @@ -51,8 +51,8 @@ struct Ax ax1 = { 1, { 0 } }; void gax1 (void) { - ax1.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_unalign } } } - ax1.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + ax1.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_misalign } } } + ax1.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } ax1.a[2] = 2; // { dg-warning "\\\[-Wstringop-overflow" } } @@ -100,7 +100,7 @@ struct A0 a0_; void ga0_ (void) { a0_.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" } - a0_.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + a0_.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } a0_.a[2] = 2; // { dg-warning "\\\[-Wstringop-overflow" } } @@ -111,7 +111,7 @@ struct A0 a00 = { 0 }; void ga00 (void) { a00.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" } - a00.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + a00.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } a00.a[2] = 2; // { dg-warning "\\\[-Wstringop-overflow" } } @@ -122,7 +122,7 @@ struct A0 a00_ = { 0, { } }; void ga00_ (void) { a00_.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" } - a00_.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + a00_.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } a00_.a[2] = 2; // { dg-warning "\\\[-Wstringop-overflow" } } @@ -166,13 +166,13 @@ struct A1 a1_; void ga1_ (void) { - a1_.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_unalign } } } - a1_.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + a1_.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_misalign } } } + a1_.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } a1_.a[2] = 2; // { dg-warning "\\\[-Wstringop-overflow" } struct A1 a; - a.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_unalign } } } - a.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + a.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_misalign } } } + a.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } a.a[2] = 2; // { dg-warning "\\\[-Wstringop-overflow" } sink (&a); } @@ -183,8 +183,8 @@ struct A1 a1__ = { 0 }; void ga1__ (void) { - a1__.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_unalign } } } - a1__.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + a1__.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_misalign } } } + a1__.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } a1__.a[2] = 2; // { dg-warning "\\\[-Wstringop-overflow" } struct A1 a = { 1 }; @@ -200,8 +200,8 @@ struct A1 a1_0 = { 0, { } }; void ga1_0_ (void) { - a1_0.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_unalign } } } - a1_0.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + a1_0.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_misalign } } } + a1_0.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } a1_0.a[2] = 2; // { dg-warning "\\\[-Wstringop-overflow" } struct A1 a = { 1, { } }; @@ -217,8 +217,8 @@ struct A1 a1_1 = { 0, { 1 } }; void ga1_1 (void) { - a1_1.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_unalign } } } - a1_1.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + a1_1.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_misalign } } } + a1_1.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } a1_1.a[2] = 2; // { dg-warning "\\\[-Wstringop-overflow" } struct A1 a = { 0, { 1 } }; // { dg-warning "\\\[-Wstringop-overflow" "pr102706" { target { vect_slp_v4qi_store_align } } } @@ -266,12 +266,12 @@ struct A1i a1i_; void ga1i_ (void) { a1i_.a[0] = 0; - a1i_.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + a1i_.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } a1i_.a[2] = 2; // { dg-warning "\\\[-Wstringop-overflow" } struct A1i a; a.a[0] = 1; - a.a[1] = 2; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + a.a[1] = 2; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } a.a[2] = 3; // { dg-warning "\\\[-Wstringop-overflow" } sink (&a); } @@ -283,7 +283,7 @@ struct A1i a1i__ = { 0 }; void ga1i__ (void) { a1i__.a[0] = 0; - a1i__.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + a1i__.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } a1i__.a[2] = 2; // { dg-warning "\\\[-Wstringop-overflow" } struct A1i a = { 0 }; @@ -299,8 +299,8 @@ struct A1 a1i_0 = { 0, { } }; void ga1i_0_ (void) { - a1i_0.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_unalign } } } - a1i_0.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + a1i_0.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_misalign } } } + a1i_0.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } a1i_0.a[2] = 2; // { dg-warning "\\\[-Wstringop-overflow" } struct A1 a = { 0, { } }; @@ -316,8 +316,8 @@ struct A1 a1i_1 = { 0, { 1 } }; void ga1i_1 (void) { - a1i_1.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_unalign } } } - a1i_1.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + a1i_1.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_misalign } } } + a1i_1.a[1] = 1; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } a1i_1.a[2] = 2; // { dg-warning "\\\[-Wstringop-overflow" } struct A1 a = { 0, { 1 } }; // { dg-warning "\\\[-Wstringop-overflow" "pr102462" { target { vect_slp_v4qi_store_align } } } diff --git a/gcc/testsuite/g++.dg/warn/Wstringop-overflow-3.C b/gcc/testsuite/g++.dg/warn/Wstringop-overflow-3.C index e1d547fe4d40c..0e8523b8ed182 100644 --- a/gcc/testsuite/g++.dg/warn/Wstringop-overflow-3.C +++ b/gcc/testsuite/g++.dg/warn/Wstringop-overflow-3.C @@ -21,7 +21,7 @@ Ax ax_; NOIPA void gax_ () { ax_.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" } - ax_.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + ax_.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } ax_.a[2] = 0; // { dg-warning "\\\[-Wstringop-overflow" } } @@ -32,7 +32,7 @@ Ax ax0 = { 0 }; NOIPA void gax0 () { ax0.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" } - ax0.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + ax0.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } ax0.a[2] = 0; // { dg-warning "\\\[-Wstringop-overflow" } } @@ -43,7 +43,7 @@ Ax ax0_ = { 0, { } }; NOIPA void gax0_ () { ax0_.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" } - ax0_.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + ax0_.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } ax0_.a[2] = 0; // { dg-warning "\\\[-Wstringop-overflow" } } @@ -53,8 +53,8 @@ Ax ax1 = { 1, { 0 } }; NOIPA void gax1 () { - ax1.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_unalign } } } - ax1.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + ax1.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_misalign } } } + ax1.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } ax1.a[2] = 0; // { dg-warning "\\\[-Wstringop-overflow" } } @@ -102,7 +102,7 @@ A0 a0_; NOIPA void ga0_ () { a0_.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" } - a0_.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + a0_.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } a0_.a[2] = 0; // { dg-warning "\\\[-Wstringop-overflow" } } @@ -113,7 +113,7 @@ A0 a00 = { 0 }; NOIPA void ga00 () { a00.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" } - a00.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + a00.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } a00.a[2] = 0; // { dg-warning "\\\[-Wstringop-overflow" } } @@ -124,7 +124,7 @@ A0 a00_ = { 0, { } }; NOIPA void ga00_ () { a00_.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" } - a00_.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + a00_.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } a00_.a[2] = 0; // { dg-warning "\\\[-Wstringop-overflow" } } @@ -168,8 +168,8 @@ A1 a1_; NOIPA void ga1_ () { - a1_.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_unalign } } } - a1_.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + a1_.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_misalign } } } + a1_.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } a1_.a[2] = 0; // { dg-warning "\\\[-Wstringop-overflow" } } @@ -179,8 +179,8 @@ A1 a1__ = { 0 }; NOIPA void ga1__ () { - a1__.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_unalign } } } - a1__.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + a1__.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_misalign } } } + a1__.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } a1__.a[2] = 0; // { dg-warning "\\\[-Wstringop-overflow" } } @@ -190,8 +190,8 @@ A1 a1_0 = { 0, { } }; NOIPA void ga1_0_ () { - a1_0.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_unalign } } } - a1_0.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + a1_0.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_misalign } } } + a1_0.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } a1_0.a[2] = 0; // { dg-warning "\\\[-Wstringop-overflow" } } @@ -201,8 +201,8 @@ A1 a1_1 = { 0, { 1 } }; NOIPA void ga1_1 () { - a1_1.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_unalign } } } - a1_1.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + a1_1.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_misalign } } } + a1_1.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } a1_1.a[2] = 0; // { dg-warning "\\\[-Wstringop-overflow" } } @@ -244,7 +244,7 @@ A1i a1i_; NOIPA void ga1i_ () { a1i_.a[0] = 0; - a1i_.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + a1i_.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } a1i_.a[2] = 0; // { dg-warning "\\\[-Wstringop-overflow" } } @@ -255,7 +255,7 @@ A1i a1i__ = { 0 }; NOIPA void ga1i__ () { a1i__.a[0] = 0; - a1i__.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + a1i__.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } a1i__.a[2] = 0; // { dg-warning "\\\[-Wstringop-overflow" } } @@ -265,8 +265,8 @@ A1 a1i_0 = { 0, { } }; NOIPA void ga1i_0_ () { - a1i_0.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_unalign } } } - a1i_0.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + a1i_0.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_misalign } } } + a1i_0.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } a1i_0.a[2] = 0; // { dg-warning "\\\[-Wstringop-overflow" } } @@ -276,8 +276,8 @@ A1 a1i_1 = { 0, { 1 } }; NOIPA void ga1i_1 () { - a1i_1.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_unalign } } } - a1i_1.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_unalign } } } + a1i_1.a[0] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { target { vect_slp_v2qi_store_misalign } } } + a1i_1.a[1] = 0; // { dg-warning "\\\[-Wstringop-overflow" "" { xfail { vect_slp_v2qi_store_misalign } } } a1i_1.a[2] = 0; // { dg-warning "\\\[-Wstringop-overflow" } } diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp index 42cbb5ce3df0d..d6878c6f2c3e1 100644 --- a/gcc/testsuite/lib/target-supports.exp +++ b/gcc/testsuite/lib/target-supports.exp @@ -9667,6 +9667,19 @@ proc check_vect_slp_store_usage { pattern macro } { p[0] = 0; p[1] = 1; } + #elif TEST_V2QI_MISALIGN + struct A2 + { + char n; + char a[2]; + }; + struct A2 p __attribute__ ((aligned (2))); + void + foo3_misalign () + { + p.a[0] = 0; + p.a[1] = 1; + } #elif TEST_V4HI struct Ax { @@ -9776,6 +9789,15 @@ proc check_effective_target_vect_slp_v2qi_store_unalign { } { expr [check_vect_slp_store_usage $pattern $macro ] }] } +# Return the true if target support vectorization of 2-byte char stores +# with a known one-byte misaligned address at plain O2. +proc check_effective_target_vect_slp_v2qi_store_misalign { } { + set pattern {add new stmt: MEM <vector\(2\) char>} + set macro "TEST_V2QI_MISALIGN" + return [check_cached_effective_target vect_slp_v2qi_store_misalign { + expr [check_vect_slp_store_usage $pattern $macro ] }] +} + # Return the true if target support vectorization of 4-byte char stores # with 4-byte aligned address at plain O2. # NB: This target should be removed after real issues are fixed for -- 2.54.0