48 lines
1.1 KiB
Diff
48 lines
1.1 KiB
Diff
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2012-02-06 Jakub Jelinek <jakub@redhat.com>
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PR debug/52132
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* reg-stack.c (subst_stack_regs_in_debug_insn): Don't use
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get_true_reg.
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* gcc.dg/pr52132.c: New test.
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--- gcc/reg-stack.c.jj 2011-12-01 11:45:06.000000000 +0100
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+++ gcc/reg-stack.c 2012-02-06 11:13:28.777795938 +0100
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@@ -1323,14 +1323,10 @@ compare_for_stack_reg (rtx insn, stack r
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static int
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subst_stack_regs_in_debug_insn (rtx *loc, void *data)
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{
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- rtx *tloc = get_true_reg (loc);
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stack regstack = (stack)data;
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int hard_regno;
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- if (!STACK_REG_P (*tloc))
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- return 0;
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-
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- if (tloc != loc)
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+ if (!STACK_REG_P (*loc))
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return 0;
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hard_regno = get_hard_regnum (regstack, *loc);
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--- gcc/testsuite/gcc.dg/pr52132.c.jj 2012-02-06 11:14:23.572547529 +0100
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+++ gcc/testsuite/gcc.dg/pr52132.c 2012-02-06 11:14:46.656442861 +0100
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@@ -0,0 +1,18 @@
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+/* PR debug/52132 */
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+/* { dg-do compile } */
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+/* { dg-options "-std=c99 -O2 -g" } */
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+
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+int l;
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+void bar (void);
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+
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+void
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+foo (int *x, float y)
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+{
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+ float b;
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+ union { float f; int i; } u = { .f = y };
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+ u.i += 127 << 23;
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+ u.f = ((-1.0f / 3) * u.f + 2) * u.f - 2.0f / 3;
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+ b = 0.5 * (u.f + l);
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+ if (b >= *x)
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+ bar ();
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+}
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