diff options
| author | Ben Gamari <ben@smart-cactus.org> | 2022-11-22 20:23:19 -0500 |
|---|---|---|
| committer | Ben Gamari <ben@smart-cactus.org> | 2022-12-05 18:43:26 -0500 |
| commit | 4f85f747b06a3be1591b52c1f15ff6588b8e5764 (patch) | |
| tree | 87231500ae96a0b2a0b3c89232bb41ad902072d0 | |
| parent | 1ee07a55baba4c9cd1f268f5e9fdfe1b6b98bf00 (diff) | |
| download | haskell-wip/tsan/codegen.tar.gz | |
rts: Ensure that global regs are never passed as fun call argswip/tsan/codegen
This is in general unsafe as they may be clobbered if they are mapped to
caller-saved machine registers. See Note [Register parameter passing].
| -rw-r--r-- | rts/HeapStackCheck.cmm | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/rts/HeapStackCheck.cmm b/rts/HeapStackCheck.cmm index 49abbe934b..50b84a023c 100644 --- a/rts/HeapStackCheck.cmm +++ b/rts/HeapStackCheck.cmm @@ -569,7 +569,7 @@ stg_block_takemvar_finally W_ r1, r3; r1 = R1; r3 = R3; - unlockClosure(R3, stg_MVAR_DIRTY_info); + unlockClosure(r3, stg_MVAR_DIRTY_info); R1 = r1; R3 = r3; jump StgReturn [R1]; @@ -597,7 +597,7 @@ stg_block_readmvar_finally W_ r1, r3; r1 = R1; r3 = R3; - unlockClosure(R3, stg_MVAR_DIRTY_info); + unlockClosure(r3, stg_MVAR_DIRTY_info); R1 = r1; R3 = r3; jump StgReturn [R1]; @@ -625,7 +625,7 @@ stg_block_putmvar_finally W_ r1, r3; r1 = R1; r3 = R3; - unlockClosure(R3, stg_MVAR_DIRTY_info); + unlockClosure(r3, stg_MVAR_DIRTY_info); R1 = r1; R3 = r3; jump StgReturn [R1]; |