diff options
Diffstat (limited to 'test/Transforms/InstCombine/2009-04-07-MulPromoteToI96.ll')
| -rw-r--r-- | test/Transforms/InstCombine/2009-04-07-MulPromoteToI96.ll | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/2009-04-07-MulPromoteToI96.ll b/test/Transforms/InstCombine/2009-04-07-MulPromoteToI96.ll new file mode 100644 index 0000000..244b22a --- /dev/null +++ b/test/Transforms/InstCombine/2009-04-07-MulPromoteToI96.ll @@ -0,0 +1,13 @@ +; RUN: opt < %s -instcombine -S | grep {mul i64} +; rdar://6762288 + +; Instcombine should not promote the mul to i96 because it is definitely +; not a legal type for the target, and we don't want a libcall. + +define i96 @test(i96 %a.4, i96 %b.2) { + %tmp1086 = trunc i96 %a.4 to i64 ; <i64> [#uses=1] + %tmp836 = trunc i96 %b.2 to i64 ; <i64> [#uses=1] + %mul185 = mul i64 %tmp1086, %tmp836 ; <i64> [#uses=1] + %tmp544 = zext i64 %mul185 to i96 ; <i96> [#uses=1] + ret i96 %tmp544 +} |