Jim Grosbach cbf676b3ba float comparison to double 'zero' constant can just be a float 'zero.' ... InstCombine was incorrectly considering the conversion of the constant zero to be unsafe. We want to transform: define float @bar(float %x) nounwind readnone optsize ssp { %conv = fpext float %x to double %cmp = fcmp olt double %conv, 0.000000e+00 %conv1 = zext i1 %cmp to i32 %conv2 = sitofp i32 %conv1 to float ret float %conv2 } Into: define float @bar(float %x) nounwind readnone optsize ssp { %cmp = fcmp olt float %x, 0.000000e+00 ; <---- This %conv1 = zext i1 %cmp to i32 %conv2 = sitofp i32 %conv1 to float ret float %conv2 } rdar://10215914 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140869 91177308-0d34-0410-b5e6-96231b3b80d8		2011-09-30 18:45:50 +00:00
..
Hello	Since the Hello pass is built as a loadable dynamic library, don't try to convert it to new-style registration yet.	2010-10-07 00:31:16 +00:00
InstCombine	float comparison to double 'zero' constant can just be a float 'zero.'	2011-09-30 18:45:50 +00:00
Instrumentation	If simple ownership works then friendship is not required.	2011-09-20 18:48:56 +00:00
IPO	Stop emitting instructions with the name "tmp" they eat up memory and have to be uniqued, without any benefit.	2011-09-27 20:39:19 +00:00
Scalar	Fold two identical set lookups into one. No functionality change.	2011-09-29 23:40:12 +00:00
Utils	Clean up uses of switch instructions so they are not dependent on the operand ordering. Patch by Stepan Dyatkovskiy.	2011-09-29 20:21:17 +00:00
CMakeLists.txt	Move library stuff out of the toplevel CMakeLists.txt file.	2011-02-18 22:06:14 +00:00
Makefile	Revert r100896 and around - this breaks the only mingw32 buildbot we have.	2010-04-15 19:51:42 +00:00