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riscv-gcc-1
Commit 943cc242 by Richard Kenner
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(expand_binop): Must always widen second operand of shift. 

From-SVN: r5276
parent 9e1835de
Showing with 11 additions and 2 deletions
gcc/optabs.c
......@@ -526,7 +526,12 @@ expand_binop (mode, binoptab, op0, op1, target, unsignedp, methods)
no_extend = 1;
xop0 = widen_operand (xop0, wider_mode, unsignedp, no_extend);
xop1 = widen_operand (xop1, wider_mode, unsignedp, no_extend);
/* The second operand of a shift must always be extended. */
xop1 = widen_operand (xop1, wider_mode, unsignedp,
no_extend && binoptab != ashl_optab
&& binoptab != lshl_optab);
temp = expand_binop (wider_mode, binoptab, xop0, xop1, NULL_RTX,
unsignedp, OPTAB_DIRECT);
if (temp)
......@@ -1419,7 +1424,11 @@ expand_binop (mode, binoptab, op0, op1, target, unsignedp, methods)
no_extend = 1;
xop0 = widen_operand (xop0, wider_mode, unsignedp, no_extend);
xop1 = widen_operand (xop1, wider_mode, unsignedp, no_extend);
/* The second operand of a shift must always be extended. */
xop1 = widen_operand (xop1, wider_mode, unsignedp,
no_extend && binoptab != ashl_optab
&& binoptab != lshl_optab);
temp = expand_binop (wider_mode, binoptab, xop0, xop1, NULL_RTX,
unsignedp, methods);
......
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