1 ; RUN: llc < %s -march=arm -mattr=+v6 | FileCheck %s -check-prefix=V6 2 ; RUN: llc < %s -march=arm | FileCheck %s -check-prefix=V4 3 ; RUN: llc < %s -march=thumb -mcpu=cortex-m3 | FileCheck %s -check-prefix=M3 4 5 define i32 @smulhi(i32 %x, i32 %y) nounwind { 6 ; V6-LABEL: smulhi: 7 ; V6: smmul 8 9 ; V4-LABEL: smulhi: 10 ; V4: smull 11 12 ; M3-LABEL: smulhi: 13 ; M3: smull 14 %tmp = sext i32 %x to i64 ; <i64> [#uses=1] 15 %tmp1 = sext i32 %y to i64 ; <i64> [#uses=1] 16 %tmp2 = mul i64 %tmp1, %tmp ; <i64> [#uses=1] 17 %tmp3 = lshr i64 %tmp2, 32 ; <i64> [#uses=1] 18 %tmp3.upgrd.1 = trunc i64 %tmp3 to i32 ; <i32> [#uses=1] 19 ret i32 %tmp3.upgrd.1 20 } 21 22 define i32 @umulhi(i32 %x, i32 %y) nounwind { 23 ; V6-LABEL: umulhi: 24 ; V6: umull 25 26 ; V4-LABEL: umulhi: 27 ; V4: umull 28 29 ; M3-LABEL: umulhi: 30 ; M3: umull 31 %tmp = zext i32 %x to i64 ; <i64> [#uses=1] 32 %tmp1 = zext i32 %y to i64 ; <i64> [#uses=1] 33 %tmp2 = mul i64 %tmp1, %tmp ; <i64> [#uses=1] 34 %tmp3 = lshr i64 %tmp2, 32 ; <i64> [#uses=1] 35 %tmp3.upgrd.2 = trunc i64 %tmp3 to i32 ; <i32> [#uses=1] 36 ret i32 %tmp3.upgrd.2 37 } 38 39 ; rdar://r10152911 40 define i32 @t3(i32 %a) nounwind { 41 ; V6-LABEL: t3: 42 ; V6: smmla 43 44 ; V4-LABEL: t3: 45 ; V4: smull 46 47 ; M3-LABEL: t3: 48 ; M3-NOT: smmla 49 ; M3: smull 50 entry: 51 %tmp1 = mul nsw i32 %a, 3 52 %tmp2 = sdiv i32 %tmp1, 23 53 ret i32 %tmp2 54 } 55
