[PATCH] Fix undefined behaviour in mips port

[PATCH] Fix undefined behaviour in mips port * config/mips/mips.c (mips_compute_frame_info): Fix left shift undefined behaviour. From-SVN: r228164

[PATCH] Fix undefined behaviour in mips port
[PATCH] Fix undefined behaviour in mips port * config/mips/mips.c (mips_compute_frame_info): Fix left shift undefined behaviour. From-SVN: r228164
ddec87d9 · Jeff Law · Jeff Law · c4362b60 · ddec87d9 · ddec87d9
Commit ddec87d9 authored Sep 26, 2015 by Jeff Law Committed by Jeff Law Sep 26, 2015
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gcc/ChangeLog
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gcc/config/mips/mips.c
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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
 2015-09-26  Jeff Law  <law@redhat.com>

+	* config/mips/mips.c (mips_compute_frame_info): Fix left shift
+	undefined behaviour.
+
 	* config/cris/cris.md (asrandb): Fix left shift undefined
 	behaviour.
 	(asrandw): Likewise.
--- a/gcc/config/mips/mips.c
+++ b/gcc/config/mips/mips.c
@@ -10572,7 +10572,7 @@ mips_compute_frame_info (void)
      if (mips_save_reg_p (regno))
 	{
 	  frame->num_fp += MAX_FPRS_PER_FMT;
-	  frame->fmask |= ~(~0 << MAX_FPRS_PER_FMT) << (regno - FP_REG_FIRST);
+	  frame->fmask |= ~(~0U << MAX_FPRS_PER_FMT) << (regno - FP_REG_FIRST);
 	}

  /* Move above the FPR save area.  */