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| author | Eli Friedman <eli.friedman@gmail.com> | 2009-05-20 06:02:09 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2009-05-20 06:02:09 +0000 |
| commit | 2ac8b324eb4de4507858dcd33ce03ef9973bf1f3 (patch) | |
| tree | 1057d4174f5df12cb6c75d52bab911f076150940 /test | |
| parent | c7d167d62fbf7ab3a31aed6c6fa0d5f7525ccb30 (diff) | |
| download | llvm-2ac8b324eb4de4507858dcd33ce03ef9973bf1f3.tar.gz llvm-2ac8b324eb4de4507858dcd33ce03ef9973bf1f3.tar.bz2 llvm-2ac8b324eb4de4507858dcd33ce03ef9973bf1f3.tar.xz | |
Fix for PR4235: to build a floating-point value from integer parts,
build an integer and cast that to a float. This fixes a crash
caused by trying to split an f32 into two f16's.
This changes the behavior in test/CodeGen/XCore/fneg.ll because that
testcase now triggers a DAGCombine which converts the fneg into an integer
operation. If someone is interested, it's probably possible to tweak
the test to generate an actual fneg.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72162 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/MSP430/2009-05-19-DoubleSplit.ll | 11 | ||||
| -rw-r--r-- | test/CodeGen/XCore/fneg.ll | 2 |
2 files changed, 12 insertions, 1 deletions
diff --git a/test/CodeGen/MSP430/2009-05-19-DoubleSplit.ll b/test/CodeGen/MSP430/2009-05-19-DoubleSplit.ll new file mode 100644 index 0000000000..20050e93ac --- /dev/null +++ b/test/CodeGen/MSP430/2009-05-19-DoubleSplit.ll @@ -0,0 +1,11 @@ +; RUN: llvm-as < %s | llc -march=msp430 + +define i16 @test(double %d) nounwind { +entry: + %add = add double %d, 1.000000e+00 + %call = tail call i16 @funct(double %add) nounwind + ret i16 %call +} + +declare i16 @funct(double) + diff --git a/test/CodeGen/XCore/fneg.ll b/test/CodeGen/XCore/fneg.ll index ac30410cf8..e4426fd908 100644 --- a/test/CodeGen/XCore/fneg.ll +++ b/test/CodeGen/XCore/fneg.ll @@ -1,5 +1,5 @@ ; RUN: llvm-as < %s | llc -march=xcore > %t1.s -; RUN: grep "bl __subdf3" %t1.s | count 1 +; RUN: grep "xor" %t1.s | count 1 define i1 @test(double %F) nounwind { entry: %0 = sub double -0.000000e+00, %F |