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66 lines
2.0 KiB
Diff
66 lines
2.0 KiB
Diff
2010-12-21 Chung-Lin Tang <cltang@codesourcery.com>
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Issue #10201
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Backport from mainline:
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2010-12-16 Chung-Lin Tang <cltang@codesourcery.com>
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PR target/46883
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gcc/
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* config/arm/arm.md
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(zero_extendhisi2 for register input splitter): Change
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"register_operand" to "s_register_operand".
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(zero_extendqisi2 for register input splitter): Same.
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gcc/testsuite/
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* gcc.target/arm/pr46883.c: New testcase.
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=== modified file 'gcc/config/arm/arm.md'
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--- old/gcc/config/arm/arm.md 2011-01-05 11:42:19 +0000
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+++ new/gcc/config/arm/arm.md 2011-01-05 11:52:16 +0000
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@@ -4114,8 +4114,8 @@
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})
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(define_split
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- [(set (match_operand:SI 0 "register_operand" "")
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- (zero_extend:SI (match_operand:HI 1 "register_operand" "")))]
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+ [(set (match_operand:SI 0 "s_register_operand" "")
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+ (zero_extend:SI (match_operand:HI 1 "s_register_operand" "")))]
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"!TARGET_THUMB2 && !arm_arch6"
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[(set (match_dup 0) (ashift:SI (match_dup 2) (const_int 16)))
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(set (match_dup 0) (lshiftrt:SI (match_dup 0) (const_int 16)))]
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@@ -4234,8 +4234,8 @@
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})
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(define_split
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- [(set (match_operand:SI 0 "register_operand" "")
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- (zero_extend:SI (match_operand:QI 1 "register_operand" "")))]
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+ [(set (match_operand:SI 0 "s_register_operand" "")
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+ (zero_extend:SI (match_operand:QI 1 "s_register_operand" "")))]
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"!arm_arch6"
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[(set (match_dup 0) (ashift:SI (match_dup 2) (const_int 24)))
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(set (match_dup 0) (lshiftrt:SI (match_dup 0) (const_int 24)))]
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=== added file 'gcc/testsuite/gcc.target/arm/pr46883.c'
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--- old/gcc/testsuite/gcc.target/arm/pr46883.c 1970-01-01 00:00:00 +0000
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+++ new/gcc/testsuite/gcc.target/arm/pr46883.c 2011-01-05 11:52:16 +0000
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@@ -0,0 +1,16 @@
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+/* { dg-do compile } */
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+/* { dg-options "-O1 -march=armv5te" } */
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+
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+void bar (unsigned char *q, unsigned short *data16s, int len)
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+{
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+ int i;
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+
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+ for (i = 0; i < len; i++)
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+ {
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+ q[2 * i] =
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+ (((data16s[i] & 0xFF) << 8) | ((data16s[i] >> 8) & 0xFF)) & 0xFF;
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+ q[2 * i + 1] =
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+ ((unsigned short)
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+ (((data16s[i] & 0xFF) << 8) | ((data16s[i] >> 8) & 0xFF))) >> 8;
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+ }
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+}
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