diff options
Diffstat (limited to 'toolchain-layer/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99502.patch')
| -rw-r--r-- | toolchain-layer/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99502.patch | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/toolchain-layer/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99502.patch b/toolchain-layer/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99502.patch deleted file mode 100644 index 59bf01cc56..0000000000 --- a/toolchain-layer/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99502.patch +++ /dev/null @@ -1,134 +0,0 @@ -2011-04-26 Chung-Lin Tang <cltang@codesourcery.com> - - Backport from mainline: - - 2011-03-21 Chung-Lin Tang <cltang@codesourcery.com> - - gcc/ - * simplify-rtx.c (simplify_binary_operation_1): Handle - (xor (and A B) C) case when B and C are both constants. - - gcc/testsuite/ - * gcc.target/arm/xor-and.c: New. - - 2011-03-18 Chung-Lin Tang <cltang@codesourcery.com> - - gcc/ - * combine.c (try_combine): Do simplification only call of - subst() on i2 even when i1 is present. Update comments. - - gcc/testsuite/ - * gcc.target/arm/unsigned-extend-1.c: New. - -=== modified file 'gcc/combine.c' ---- old/gcc/combine.c 2011-01-06 11:02:44 +0000 -+++ new/gcc/combine.c 2011-04-14 13:58:12 +0000 -@@ -2939,7 +2939,7 @@ - /* It is possible that the source of I2 or I1 may be performing - an unneeded operation, such as a ZERO_EXTEND of something - that is known to have the high part zero. Handle that case -- by letting subst look at the innermost one of them. -+ by letting subst look at the inner insns. - - Another way to do this would be to have a function that tries - to simplify a single insn instead of merging two or more -@@ -2964,11 +2964,9 @@ - subst_low_luid = DF_INSN_LUID (i1); - i1src = subst (i1src, pc_rtx, pc_rtx, 0, 0, 0); - } -- else -- { -- subst_low_luid = DF_INSN_LUID (i2); -- i2src = subst (i2src, pc_rtx, pc_rtx, 0, 0, 0); -- } -+ -+ subst_low_luid = DF_INSN_LUID (i2); -+ i2src = subst (i2src, pc_rtx, pc_rtx, 0, 0, 0); - } - - n_occurrences = 0; /* `subst' counts here */ - -=== modified file 'gcc/simplify-rtx.c' ---- old/gcc/simplify-rtx.c 2010-06-25 20:11:56 +0000 -+++ new/gcc/simplify-rtx.c 2011-04-14 13:58:12 +0000 -@@ -2413,6 +2413,46 @@ - XEXP (op0, 1), mode), - op1); - -+ /* Given (xor (and A B) C), using P^Q == (~P&Q) | (~Q&P), -+ we can transform like this: -+ (A&B)^C == ~(A&B)&C | ~C&(A&B) -+ == (~A|~B)&C | ~C&(A&B) * DeMorgan's Law -+ == ~A&C | ~B&C | A&(~C&B) * Distribute and re-order -+ Attempt a few simplifications when B and C are both constants. */ -+ if (GET_CODE (op0) == AND -+ && CONST_INT_P (op1) -+ && CONST_INT_P (XEXP (op0, 1))) -+ { -+ rtx a = XEXP (op0, 0); -+ rtx b = XEXP (op0, 1); -+ rtx c = op1; -+ HOST_WIDE_INT bval = INTVAL (b); -+ HOST_WIDE_INT cval = INTVAL (c); -+ -+ rtx na_c -+ = simplify_binary_operation (AND, mode, -+ simplify_gen_unary (NOT, mode, a, mode), -+ c); -+ if ((~cval & bval) == 0) -+ { -+ /* Try to simplify ~A&C | ~B&C. */ -+ if (na_c != NULL_RTX) -+ return simplify_gen_binary (IOR, mode, na_c, -+ GEN_INT (~bval & cval)); -+ } -+ else -+ { -+ /* If ~A&C is zero, simplify A&(~C&B) | ~B&C. */ -+ if (na_c == const0_rtx) -+ { -+ rtx a_nc_b = simplify_gen_binary (AND, mode, a, -+ GEN_INT (~cval & bval)); -+ return simplify_gen_binary (IOR, mode, a_nc_b, -+ GEN_INT (~bval & cval)); -+ } -+ } -+ } -+ - /* (xor (comparison foo bar) (const_int 1)) can become the reversed - comparison if STORE_FLAG_VALUE is 1. */ - if (STORE_FLAG_VALUE == 1 - -=== added file 'gcc/testsuite/gcc.target/arm/unsigned-extend-1.c' ---- old/gcc/testsuite/gcc.target/arm/unsigned-extend-1.c 1970-01-01 00:00:00 +0000 -+++ new/gcc/testsuite/gcc.target/arm/unsigned-extend-1.c 2011-04-14 13:58:12 +0000 -@@ -0,0 +1,9 @@ -+/* { dg-do compile } */ -+/* { dg-options "-O2 -march=armv6" } */ -+ -+unsigned char foo (unsigned char c) -+{ -+ return (c >= '0') && (c <= '9'); -+} -+ -+/* { dg-final { scan-assembler-not "uxtb" } } */ - -=== added file 'gcc/testsuite/gcc.target/arm/xor-and.c' ---- old/gcc/testsuite/gcc.target/arm/xor-and.c 1970-01-01 00:00:00 +0000 -+++ new/gcc/testsuite/gcc.target/arm/xor-and.c 2011-04-14 13:58:12 +0000 -@@ -0,0 +1,14 @@ -+/* { dg-do compile } */ -+/* { dg-options "-O -march=armv6" } */ -+ -+unsigned short foo (unsigned short x) -+{ -+ x ^= 0x4002; -+ x >>= 1; -+ x |= 0x8000; -+ return x; -+} -+ -+/* { dg-final { scan-assembler "orr" } } */ -+/* { dg-final { scan-assembler-not "mvn" } } */ -+/* { dg-final { scan-assembler-not "uxth" } } */ - |