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authorjanekptacijarabaci <janekptacijarabaci@seznam.cz>2018-03-27 15:57:18 +0200
committerjanekptacijarabaci <janekptacijarabaci@seznam.cz>2018-03-27 15:57:18 +0200
commitd990d8ab2cade6c928e8bbe56ae038d020cef599 (patch)
treec7561ae0f303cb0d4a7a7507178531b4852e4dea /js/src/jit/MIRGraph.cpp
parent0c36b27511c1fbca594f0426c493ef601fda3e4c (diff)
parent8d5ec757ece850fb7ad5c712868f305636e41177 (diff)
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Merge branch 'master' of https://github.com/MoonchildProductions/UXP into js_array_values_1
Diffstat (limited to 'js/src/jit/MIRGraph.cpp')
-rw-r--r--js/src/jit/MIRGraph.cpp13
1 files changed, 13 insertions, 0 deletions
diff --git a/js/src/jit/MIRGraph.cpp b/js/src/jit/MIRGraph.cpp
index 3a363a5bf..d6e0fa8ff 100644
--- a/js/src/jit/MIRGraph.cpp
+++ b/js/src/jit/MIRGraph.cpp
@@ -790,6 +790,19 @@ MBasicBlock::pick(int32_t depth)
}
void
+MBasicBlock::unpick(int32_t depth)
+{
+ // unpick take the top of the stack element and move it under the depth-th
+ // element;
+ // unpick(-2):
+ // A B C D E
+ // A B C E D [ swapAt(-1) ]
+ // A B E C D [ swapAt(-2) ]
+ for (int32_t n = -1; n >= depth; n--)
+ swapAt(n);
+}
+
+void
MBasicBlock::swapAt(int32_t depth)
{
uint32_t lhsDepth = stackPosition_ + depth - 1;