[llvm] ddd2f4b - [AMDGPU] Fix inaccurate comments

[Jay Foad via llvm-commits]

Author: Jay Foad
Date: 2020-04-06T16:44:08+01:00
New Revision: ddd2f4b96f9f3967a66e744a98b6ecec25c55de8

URL: https://github.com/llvm/llvm-project/commit/ddd2f4b96f9f3967a66e744a98b6ecec25c55de8
DIFF: https://github.com/llvm/llvm-project/commit/ddd2f4b96f9f3967a66e744a98b6ecec25c55de8.diff

LOG: [AMDGPU] Fix inaccurate comments

Added: 
    

Modified: 
    llvm/lib/Target/AMDGPU/SILowerControlFlow.cpp

Removed: 
    


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diff  --git a/llvm/lib/Target/AMDGPU/SILowerControlFlow.cpp b/llvm/lib/Target/AMDGPU/SILowerControlFlow.cpp
index b46a515c0b5e..caf21086cc37 100644
--- a/llvm/lib/Target/AMDGPU/SILowerControlFlow.cpp
+++ b/llvm/lib/Target/AMDGPU/SILowerControlFlow.cpp
@@ -38,8 +38,8 @@
 /// %vgpr0 = V_ADD_F32 %vgpr0, %vgpr0 // Do the IF block of the branch
 ///
 /// label0:
-/// %sgpr0 = S_OR_SAVEEXEC_B64 %exec   // Restore the exec mask for the Then block
-/// %exec = S_XOR_B64 %sgpr0, %exec    // Clear live bits from saved exec mask
+/// %sgpr0 = S_OR_SAVEEXEC_B64 %sgpr0  // Restore the exec mask for the Then block
+/// %exec = S_XOR_B64 %sgpr0, %exec    // Update the exec mask
 /// S_BRANCH_EXECZ label1              // Use our branch optimization
 ///                                    // instruction again.
 /// %vgpr0 = V_SUB_F32 %vgpr0, %vgpr   // Do the THEN block