From: Uros Bizjak Date: Sun, 19 Jan 2014 15:48:14 +0000 (+0100) Subject: re PR target/59379 (gomp_init_num_threads is compiled into an infinite loop with... X-Git-Tag: releases/gcc-4.9.0~1581 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=efc90043e6875c3e9ec19d16fb20c6a082bff5da;p=thirdparty%2Fgcc.git re PR target/59379 (gomp_init_num_threads is compiled into an infinite loop with --with-arch=corei7 --with-cpu=slm) PR target/59379 * config/i386/i386.md (*lea): Zero-extend return register to DImode for zero-extended addresses. From-SVN: r206774 --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 0fd40b5da8dc..abb54a8972fa 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,10 +1,17 @@ +2014-01-18 Uros Bizjak + H.J. Lu + + PR target/59379 + * config/i386/i386.md (*lea): Zero-extend return register + to DImode for zero-extended addresses. + 2014-01-19 Jakub Jelinek PR rtl-optimization/57763 * bb-reorder.c (fix_crossing_unconditional_branches): Set JUMP_LABEL on the new indirect jump_insn and increment LABEL_NUSES (label). -2014-01-18 H.J. Lu +2014-01-18 H.J. Lu PR bootstrap/59580 PR bootstrap/59583 diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md index e30f389be1d2..603fd8a616b1 100644 --- a/gcc/config/i386/i386.md +++ b/gcc/config/i386/i386.md @@ -5428,12 +5428,17 @@ operands[0] = SET_DEST (pat); operands[1] = SET_SRC (pat); - /* Emit all operations in SImode for zero-extended addresses. Recall - that x86_64 inheretly zero-extends SImode operations to DImode. */ + /* Emit all operations in SImode for zero-extended addresses. */ if (SImode_address_operand (operands[1], VOIDmode)) mode = SImode; ix86_split_lea_for_addr (curr_insn, operands, mode); + + /* Zero-extend return register to DImode for zero-extended addresses. */ + if (mode != mode) + emit_insn (gen_zero_extendsidi2 + (operands[0], gen_lowpart ((mode), operands[0]))); + DONE; } [(set_attr "type" "lea")