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Diffstat (limited to 'test/Transforms/InstCombine/trunc-mask-ext.ll')
-rw-r--r-- | test/Transforms/InstCombine/trunc-mask-ext.ll | 38 |
1 files changed, 0 insertions, 38 deletions
diff --git a/test/Transforms/InstCombine/trunc-mask-ext.ll b/test/Transforms/InstCombine/trunc-mask-ext.ll deleted file mode 100644 index 93e3753..0000000 --- a/test/Transforms/InstCombine/trunc-mask-ext.ll +++ /dev/null @@ -1,38 +0,0 @@ -; RUN: opt < %s -instcombine -S > %t -; RUN: not grep zext %t -; RUN: not grep sext %t - -; Instcombine should be able to eliminate all of these ext casts. - -declare void @use(i32) - -define i64 @foo(i64 %a) { - %b = trunc i64 %a to i32 - %c = and i32 %b, 15 - %d = zext i32 %c to i64 - call void @use(i32 %b) - ret i64 %d -} -define i64 @bar(i64 %a) { - %b = trunc i64 %a to i32 - %c = shl i32 %b, 4 - %q = ashr i32 %c, 4 - %d = sext i32 %q to i64 - call void @use(i32 %b) - ret i64 %d -} -define i64 @goo(i64 %a) { - %b = trunc i64 %a to i32 - %c = and i32 %b, 8 - %d = zext i32 %c to i64 - call void @use(i32 %b) - ret i64 %d -} -define i64 @hoo(i64 %a) { - %b = trunc i64 %a to i32 - %c = and i32 %b, 8 - %x = xor i32 %c, 8 - %d = zext i32 %x to i64 - call void @use(i32 %b) - ret i64 %d -} |