re PR target/31152 (-(x>y) generates wrong code)
PR target/31152 * arm.md (negscc): Match the correct operand for optimized LT0 test. Remove optimization for GT. *gcc.c-torture/execute/20070623-1.c: New. From-SVN: r125973
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2007-06-23 Richard Earnshaw <rearnsha@arm.com>
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PR target/31152
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* arm.md (negscc): Match the correct operand for optimized LT0 test.
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Remove optimization for GT.
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2007-06-23 Kenneth Zadeck <zadeck@naturalbridge.com>
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PR middle-end/32437
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@ -9423,15 +9423,12 @@
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(clobber (reg:CC CC_REGNUM))]
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"TARGET_ARM"
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"*
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if (GET_CODE (operands[3]) == LT && operands[3] == const0_rtx)
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if (GET_CODE (operands[3]) == LT && operands[2] == const0_rtx)
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return \"mov\\t%0, %1, asr #31\";
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if (GET_CODE (operands[3]) == NE)
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return \"subs\\t%0, %1, %2\;mvnne\\t%0, #0\";
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if (GET_CODE (operands[3]) == GT)
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return \"subs\\t%0, %1, %2\;mvnne\\t%0, %0, asr #31\";
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output_asm_insn (\"cmp\\t%1, %2\", operands);
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output_asm_insn (\"mov%D3\\t%0, #0\", operands);
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return \"mvn%d3\\t%0, #0\";
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@ -1,3 +1,7 @@
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2007-06-23 Richard Earnshaw <rearnsha@arm.com>
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* gcc.c-torture/execute/20070623-1.c: New.
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2007-06-22 Jan Hubicka <jh@suse.cz>
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* gcc.c-torture/compile/pr31541.c: New.
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@ -0,0 +1,41 @@
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#include <limits.h>
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int __attribute__((noinline)) nge(int a, int b) {return -(a >= b);}
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int __attribute__((noinline)) ngt(int a, int b) {return -(a > b);}
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int __attribute__((noinline)) nle(int a, int b) {return -(a <= b);}
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int __attribute__((noinline)) nlt(int a, int b) {return -(a < b);}
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int __attribute__((noinline)) neq(int a, int b) {return -(a == b);}
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int __attribute__((noinline)) nne(int a, int b) {return -(a != b);}
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int __attribute__((noinline)) ngeu(unsigned a, unsigned b) {return -(a >= b);}
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int __attribute__((noinline)) ngtu(unsigned a, unsigned b) {return -(a > b);}
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int __attribute__((noinline)) nleu(unsigned a, unsigned b) {return -(a <= b);}
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int __attribute__((noinline)) nltu(unsigned a, unsigned b) {return -(a < b);}
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int main()
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{
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if (nge(INT_MIN, INT_MAX) != 0) abort();
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if (nge(INT_MAX, INT_MIN) != -1) abort();
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if (ngt(INT_MIN, INT_MAX) != 0) abort();
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if (ngt(INT_MAX, INT_MIN) != -1) abort();
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if (nle(INT_MIN, INT_MAX) != -1) abort();
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if (nle(INT_MAX, INT_MIN) != 0) abort();
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if (nlt(INT_MIN, INT_MAX) != -1) abort();
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if (nlt(INT_MAX, INT_MIN) != 0) abort();
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if (neq(INT_MIN, INT_MAX) != 0) abort();
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if (neq(INT_MAX, INT_MIN) != 0) abort();
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if (nne(INT_MIN, INT_MAX) != -1) abort();
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if (nne(INT_MAX, INT_MIN) != -1) abort();
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if (ngeu(0, ~0U) != 0) abort();
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if (ngeu(~0U, 0) != -1) abort();
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if (ngtu(0, ~0U) != 0) abort();
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if (ngtu(~0U, 0) != -1) abort();
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if (nleu(0, ~0U) != -1) abort();
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if (nleu(~0U, 0) != 0) abort();
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if (nltu(0, ~0U) != -1) abort();
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if (nltu(~0U, 0) != 0) abort();
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exit(0);
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}
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