1 ; RUN: llc -mtriple=arm-eabi %s -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-V4
2 ; RUN: llc -mtriple=armv6-eabi %s -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-V6
3 ; RUN: llc -mtriple=armv7-eabi %s -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-V6
4 ; RUN: llc -mtriple=thumb-eabi %s -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-THUMB
5 ; RUN: llc -mtriple=thumbv6-eabi %s -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-THUMB
6 ; RUN: llc -mtriple=thumbv6t2-eabi %s -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-THUMBV6T2
7 ; RUN: llc -mtriple=thumbv7-eabi %s -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-THUMBV6T2
8 ; RUN: llc -mtriple=thumbv7m-eabi %s -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-V4
9 ; RUN: llc -mtriple=thumbv7em-eabi %s -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-THUMBV6T2
11 define i32 @Test0(i32 %a, i32 %b, i32 %c) nounwind readnone ssp {
15 %conv4 = zext i32 %a to i64
16 %conv1 = sext i32 %b to i64
17 %conv2 = sext i32 %c to i64
18 %mul = mul nsw i64 %conv2, %conv1
19 %shr5 = lshr i64 %mul, 32
20 %sub = sub nsw i64 %conv4, %shr5
21 %conv3 = trunc i64 %sub to i32
25 define i32 @Test1(i32 %a, i32 %b, i32 %c) {
28 ;CHECK-THUMB-NOT: smmls
29 ;CHECK-V6: smmls r0, [[Rn:r[1-2]]], [[Rm:r[1-2]]], r0
30 ;CHECK-THUMBV6T2: smmls r0, [[Rn:r[1-2]]], [[Rm:r[1-2]]], r0
32 %conv = sext i32 %b to i64
33 %conv1 = sext i32 %c to i64
34 %mul = mul nsw i64 %conv1, %conv
35 %conv26 = zext i32 %a to i64
36 %shl = shl nuw i64 %conv26, 32
37 %sub = sub nsw i64 %shl, %mul
38 %shr7 = lshr i64 %sub, 32
39 %conv3 = trunc i64 %shr7 to i32
43 declare void @opaque(i32)
44 define void @test_used_flags(i32 %in1, i32 %in2) {
45 ; CHECK-LABEL: test_used_flags:
46 ; CHECK-THUMB: movs r2, #0
47 ; CHECK-THUMB: rsbs r0, r0, #0
48 ; CHECK-THUMB: sbcs r2, r1
50 ; CHECK-V6: smull [[PROD_LO:r[0-9]+]], [[PROD_HI:r[0-9]+]], r0, r1
51 ; CHECK-V6: rsbs {{.*}}, [[PROD_LO]], #0
52 ; CHECK-V6: rscs {{.*}}, [[PROD_HI]], #0
53 ; CHECK-THUMBV6T2: smull [[PROD_LO:r[0-9]+]], [[PROD_HI:r[0-9]+]], r0, r1
54 ; CHECK-THUMBV6T2: movs [[ZERO:r[0-9]+]], #0
55 ; CHECK-THUMBV6T2: rsbs {{.*}}, [[PROD_LO]], #0
56 ; CHECK-THUMBV6T2: sbcs.w {{.*}}, [[ZERO]], [[PROD_HI]]
57 %in1.64 = sext i32 %in1 to i64
58 %in2.64 = sext i32 %in2 to i64
59 %mul = mul nsw i64 %in1.64, %in2.64
60 %tst = icmp slt i64 %mul, 1
61 br i1 %tst, label %true, label %false
64 call void @opaque(i32 42)
68 call void @opaque(i32 56)