From 7da13f1d80b35d3e00ef1a4c785f49f58d8fa767 Mon Sep 17 00:00:00 2001 From: Nathan Froyd Date: Wed, 7 Jan 2009 23:21:26 +0000 Subject: [PATCH] rs6000.c (rs6000_legitimize_address): Check for non-word-aligned REG+CONST addressing. gcc/ * config/rs6000/rs6000.c (rs6000_legitimize_address): Check for non-word-aligned REG+CONST addressing. gcc/testsuite/ * gcc.c-torture/compile/20090107-1.c: New test. Co-Authored-By: Alan Modra From-SVN: r143171 --- gcc/ChangeLog | 6 +++++ gcc/config/rs6000/rs6000.c | 5 +++- gcc/testsuite/ChangeLog | 5 ++++ .../gcc.c-torture/compile/20090107-1.c | 25 +++++++++++++++++++ 4 files changed, 40 insertions(+), 1 deletion(-) create mode 100644 gcc/testsuite/gcc.c-torture/compile/20090107-1.c diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 92ffefea476b..29c4ba4a4314 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2009-01-07 Nathan Froyd + Alan Modra + + * config/rs6000/rs6000.c (rs6000_legitimize_address): Check for + non-word-aligned REG+CONST addressing. + 2009-01-07 Uros Bizjak PR target/38706 diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 49551f61b580..6d7327b5ea4d 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -3804,7 +3804,10 @@ rs6000_legitimize_address (rtx x, rtx oldx ATTRIBUTE_UNUSED, && GET_CODE (XEXP (x, 0)) == REG && GET_CODE (XEXP (x, 1)) == CONST_INT && (unsigned HOST_WIDE_INT) (INTVAL (XEXP (x, 1)) + 0x8000) >= 0x10000 - && !(SPE_VECTOR_MODE (mode) + && !((TARGET_POWERPC64 + && (mode == DImode || mode == TImode) + && (INTVAL (XEXP (x, 1)) & 3) != 0) + || SPE_VECTOR_MODE (mode) || ALTIVEC_VECTOR_MODE (mode) || (TARGET_E500_DOUBLE && (mode == DFmode || mode == TFmode || mode == DImode || mode == DDmode diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index e0fb09524d23..ccd555e4c990 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2009-01-07 Nathan Froyd + Alan Modra + + * gcc.c-torture/compile/20090107-1.c: New test. + 2009-01-07 Uros Bizjak PR target/38706 diff --git a/gcc/testsuite/gcc.c-torture/compile/20090107-1.c b/gcc/testsuite/gcc.c-torture/compile/20090107-1.c new file mode 100644 index 000000000000..b5d4c1a44662 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/compile/20090107-1.c @@ -0,0 +1,25 @@ +/* Verify that we don't ICE by forming invalid addresses for unaligned + doubleword loads (originally for PPC64). */ + +struct a +{ + unsigned int x; + unsigned short y; +} __attribute__((packed)); + +struct b { + struct a rep; + unsigned long long seq; +} __attribute__((packed)); + +struct c { + int x; + struct a a[5460]; + struct b b; +}; + +extern void use_ull(unsigned long long); +extern void f(struct c *i) { + use_ull(i->b.seq); + return; +} -- 2.47.3