b46256b0b4
When the Constant Hoisting pass moves expensive constants into a common block, it would assign a debug location equal to the last use of that constant. While this is certainly intuitive, it places the constant in an out-of-order location, according to the debug location information. This produces out-of-order stepping when debugging programs affected by this pass. This patch creates in-order stepping behavior by merging the debug locations for hoisted constants, and the new insertion point. Patch by Matthew Voss! Differential Revision: https://reviews.llvm.org/D38088 llvm-svn: 317827 |
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