From e6750e5ce04bf778fc9bb0d07143b72cc6dc2c79 Mon Sep 17 00:00:00 2001
From: Alan Modra <amodra@gmail.com>
Date: Tue, 17 Jan 2017 13:24:11 +1030
Subject: [PATCH] PR79066, non-PIC code generated for powerpc glibc with -fpic
PR target/79066
* config/rs6000/rs6000.md (elf_high, elf_low): Disable when pic.
* config/rs6000/rs6000.c (rs6000_emit_allocate_stack): Don't allow
symbolic stack limit when pic.
testsuite/
* gcc.target/powerpc/pr79066.c: New.
From-SVN: r244515
---
gcc/ChangeLog | 7 +++++++
gcc/config/rs6000/rs6000.c | 3 ++-
gcc/config/rs6000/rs6000.md | 4 ++--
gcc/testsuite/ChangeLog | 4 ++++
gcc/testsuite/gcc.target/powerpc/pr79066.c | 14 ++++++++++++++
5 files changed, 29 insertions(+), 3 deletions(-)
create mode 100644 gcc/testsuite/gcc.target/powerpc/pr79066.c
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ead236ff5fb5..073b53ee8439 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2017-01-17 Alan Modra <amodra@gmail.com>
+
+ PR target/79066
+ * config/rs6000/rs6000.md (elf_high, elf_low): Disable when pic.
+ * config/rs6000/rs6000.c (rs6000_emit_allocate_stack): Don't allow
+ symbolic stack limit when pic.
+
2017-01-16 Martin Sebor <msebor@redhat.com>
PR tree-optimization/78608
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index 29b3fd65624d..37ad7d04c2fc 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -27669,7 +27669,8 @@ rs6000_emit_allocate_stack (HOST_WIDE_INT size, rtx copy_reg, int copy_off)
}
else if (GET_CODE (stack_limit_rtx) == SYMBOL_REF
&& TARGET_32BIT
- && DEFAULT_ABI == ABI_V4)
+ && DEFAULT_ABI == ABI_V4
+ && !flag_pic)
{
rtx toload = gen_rtx_CONST (VOIDmode,
gen_rtx_PLUS (Pmode,
diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md
index b3334749860d..f00334a1d09d 100644
--- a/gcc/config/rs6000/rs6000.md
+++ b/gcc/config/rs6000/rs6000.md
@@ -10581,14 +10581,14 @@
(define_insn "elf_high"
[(set (match_operand:SI 0 "gpc_reg_operand" "=b*r")
(high:SI (match_operand 1 "" "")))]
- "TARGET_ELF && ! TARGET_64BIT"
+ "TARGET_ELF && !TARGET_64BIT && !flag_pic"
"lis %0,%1@ha")
(define_insn "elf_low"
[(set (match_operand:SI 0 "gpc_reg_operand" "=r")
(lo_sum:SI (match_operand:SI 1 "gpc_reg_operand" "b")
(match_operand 2 "" "")))]
- "TARGET_ELF && ! TARGET_64BIT"
+ "TARGET_ELF && !TARGET_64BIT && !flag_pic"
"la %0,%2@l(%1)")
;; Call and call_value insns
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 09c5d52aa4bf..c00a050732b0 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2017-01-17 Alan Modra <amodra@gmail.com>
+
+ * gcc.target/powerpc/pr79066.c: New.
+
2017-01-16 Jeff Law <law@redhat.com>
PR tree-optimization/33562
diff --git a/gcc/testsuite/gcc.target/powerpc/pr79066.c b/gcc/testsuite/gcc.target/powerpc/pr79066.c
new file mode 100644
index 000000000000..86b20149bdfa
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/pr79066.c
@@ -0,0 +1,14 @@
+/* { dg-do compile { target { fpic && ilp32 } } } */
+/* { dg-options "-O2 -fpic" } */
+/* { dg-final { scan-assembler-not "lis.*@ha" } } */
+
+union U { double x; int i[2]; };
+
+double
+foo (double x)
+{
+ union U v;
+ v.i[0] = 0x7ff00000;
+ v.i[1] = 0;
+ return x / v.x;
+}
--
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