diff options
Diffstat (limited to 'test/CodeGen/ARM64/bitfield-extract.ll')
-rw-r--r-- | test/CodeGen/ARM64/bitfield-extract.ll | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/test/CodeGen/ARM64/bitfield-extract.ll b/test/CodeGen/ARM64/bitfield-extract.ll index c33e57e178..143aebc577 100644 --- a/test/CodeGen/ARM64/bitfield-extract.ll +++ b/test/CodeGen/ARM64/bitfield-extract.ll @@ -500,3 +500,20 @@ end: %conv3 = phi i80 [%conv, %entry], [%conv2, %then] ret i80 %conv3 } + +define i16 @test_ignored_rightbits(i32 %dst, i32 %in) { +; CHECK-LABEL: test_ignored_rightbits: + + %positioned_field = shl i32 %in, 3 + %positioned_masked_field = and i32 %positioned_field, 120 + %masked_dst = and i32 %dst, 7 + %insertion = or i32 %masked_dst, %positioned_masked_field +; CHECK: {{bfm|bfi}} + + %shl16 = shl i32 %insertion, 8 + %or18 = or i32 %shl16, %insertion + %conv19 = trunc i32 %or18 to i16 +; CHECK: {{bfm w[0-9]+, w[0-9]+, #24, #6|bfi w[0-9]+, w[0-9]+, #8, #7}} + + ret i16 %conv19 +} |