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| author | Bruce Forstall <brucefo@microsoft.com> | 2015-09-11 12:04:31 -0700 |
|---|---|---|
| committer | Bruce Forstall <brucefo@microsoft.com> | 2015-09-11 12:04:31 -0700 |
| commit | 81291720abef64f07db0b01162b4ee1bde4ff7f8 (patch) | |
| tree | 153a6f6ccfd1f16e9179530c0956a87c9c65e876 /src/jit | |
| parent | ff51d9e5384a61d22342aa640deafe62ec5a8754 (diff) | |
| download | coreclr-81291720abef64f07db0b01162b4ee1bde4ff7f8.tar.gz coreclr-81291720abef64f07db0b01162b4ee1bde4ff7f8.tar.bz2 coreclr-81291720abef64f07db0b01162b4ee1bde4ff7f8.zip | |
Replace 'long' by 'int' to avoid bug on Linux
In GetSignedMagicNumberDivide(), a cast to (unsigned long) was doing a sign extend instead of a zero extend, leading
to an apparent infinite loop with test case b147814_il.exe. This change replaces the cast with (unsigned int), which
matches Windows behavior.
Diffstat (limited to 'src/jit')
| -rw-r--r-- | src/jit/morph.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/jit/morph.cpp b/src/jit/morph.cpp index 2eb5b53621..f3eb506b0d 100644 --- a/src/jit/morph.cpp +++ b/src/jit/morph.cpp @@ -11076,7 +11076,7 @@ T GetSignedMagicNumberForDivide(T denom, int *shift /*out*/) int iters = 0; absDenom = abs(denom); - t = two_nminus1 + ((unsigned long)denom >> 31); + t = two_nminus1 + ((unsigned int)denom >> 31); absNc = t - 1 - (t % absDenom); // absolute value of nc p = bits_minus_1; // initialize p q1 = two_nminus1 / absNc; // initialize q1 = 2^p / abs(nc) |