1 # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
2 # RUN: llc -o - -mtriple=x86_64-- -run-pass=greedy %s | FileCheck %s
3 # Tests for stack folding MULX. Doing this as a MIR test to ensure MULX is used and not legacy MUL.
5 ; Function Attrs: nounwind
6 define i32 @stack_fold_mulx_u32(i32 %a0, i32 %a1) #0 {
7 %1 = tail call i32 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
8 %2 = zext i32 %a0 to i128
9 %3 = zext i32 %a1 to i128
12 %6 = trunc i128 %5 to i32
16 ; Function Attrs: nounwind
17 define i64 @stack_fold_mulx_u64(i64 %a0, i64 %a1) #0 {
18 %1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
19 %2 = zext i64 %a0 to i128
20 %3 = zext i64 %a1 to i128
23 %6 = trunc i128 %5 to i64
27 ; Function Attrs: nounwind
28 declare void @llvm.stackprotector(i8*, i8**) #1
30 attributes #0 = { nounwind "target-features"="+bmi2" }
31 attributes #1 = { nounwind }
35 name: stack_fold_mulx_u32
37 tracksRegLiveness: true
39 - { id: 0, class: gr32 }
40 - { id: 1, class: gr32 }
41 - { id: 2, class: fr64 }
42 - { id: 3, class: gr32 }
43 - { id: 4, class: gr32 }
45 - { reg: '$edi', virtual-reg: '%0' }
46 - { reg: '$esi', virtual-reg: '%1' }
51 ; CHECK-LABEL: name: stack_fold_mulx_u32
52 ; CHECK: liveins: $edi, $esi
53 ; CHECK: MOV32mr %stack.0, 1, $noreg, 0, $noreg, $esi :: (store 4 into %stack.0)
54 ; CHECK: MOV32mr %stack.1, 1, $noreg, 0, $noreg, $edi :: (store 4 into %stack.1)
55 ; CHECK: INLINEASM &nop, 1, 4063242, def dead %2, 12, implicit-def dead early-clobber $rax, 12, implicit-def dead early-clobber $rbx, 12, implicit-def dead early-clobber $rcx, 12, implicit-def dead early-clobber $rdx, 12, implicit-def dead early-clobber $rsi, 12, implicit-def dead early-clobber $rdi, 12, implicit-def dead early-clobber $rbp, 12, implicit-def dead early-clobber $r8, 12, implicit-def dead early-clobber $r9, 12, implicit-def dead early-clobber $r10, 12, implicit-def dead early-clobber $r11, 12, implicit-def dead early-clobber $r12, 12, implicit-def dead early-clobber $r13, 12, implicit-def dead early-clobber $r14, 12, implicit-def dead early-clobber $r15
56 ; CHECK: $edx = MOV32rm %stack.1, 1, $noreg, 0, $noreg :: (load 4 from %stack.1)
57 ; CHECK: %3:gr32, dead %4:gr32 = MULX32rm %stack.0, 1, $noreg, 0, $noreg, implicit $edx :: (load 4 from %stack.0)
58 ; CHECK: $eax = COPY %3
62 INLINEASM &nop, 1, 4063242, def dead %2, 12, implicit-def dead early-clobber $rax, 12, implicit-def dead early-clobber $rbx, 12, implicit-def dead early-clobber $rcx, 12, implicit-def dead early-clobber $rdx, 12, implicit-def dead early-clobber $rsi, 12, implicit-def dead early-clobber $rdi, 12, implicit-def dead early-clobber $rbp, 12, implicit-def dead early-clobber $r8, 12, implicit-def dead early-clobber $r9, 12, implicit-def dead early-clobber $r10, 12, implicit-def dead early-clobber $r11, 12, implicit-def dead early-clobber $r12, 12, implicit-def dead early-clobber $r13, 12, implicit-def dead early-clobber $r14, 12, implicit-def dead early-clobber $r15
64 %3:gr32, dead %4:gr32 = MULX32rr %1, implicit killed $edx
70 name: stack_fold_mulx_u64
72 tracksRegLiveness: true
74 - { id: 0, class: gr64 }
75 - { id: 1, class: gr64 }
76 - { id: 2, class: fr64 }
77 - { id: 3, class: gr64 }
78 - { id: 4, class: gr64 }
80 - { reg: '$rdi', virtual-reg: '%0' }
81 - { reg: '$rsi', virtual-reg: '%1' }
86 ; CHECK-LABEL: name: stack_fold_mulx_u64
87 ; CHECK: liveins: $rdi, $rsi
88 ; CHECK: MOV64mr %stack.0, 1, $noreg, 0, $noreg, $rsi :: (store 8 into %stack.0)
89 ; CHECK: MOV64mr %stack.1, 1, $noreg, 0, $noreg, $rdi :: (store 8 into %stack.1)
90 ; CHECK: INLINEASM &nop, 1, 4063242, def dead %2, 12, implicit-def dead early-clobber $rax, 12, implicit-def dead early-clobber $rbx, 12, implicit-def dead early-clobber $rcx, 12, implicit-def dead early-clobber $rdx, 12, implicit-def dead early-clobber $rsi, 12, implicit-def dead early-clobber $rdi, 12, implicit-def dead early-clobber $rbp, 12, implicit-def dead early-clobber $r8, 12, implicit-def dead early-clobber $r9, 12, implicit-def dead early-clobber $r10, 12, implicit-def dead early-clobber $r11, 12, implicit-def dead early-clobber $r12, 12, implicit-def dead early-clobber $r13, 12, implicit-def dead early-clobber $r14, 12, implicit-def dead early-clobber $r15
91 ; CHECK: $rdx = MOV64rm %stack.1, 1, $noreg, 0, $noreg :: (load 8 from %stack.1)
92 ; CHECK: %3:gr64, dead %4:gr64 = MULX64rm %stack.0, 1, $noreg, 0, $noreg, implicit $rdx :: (load 8 from %stack.0)
93 ; CHECK: $rax = COPY %3
97 INLINEASM &nop, 1, 4063242, def dead %2, 12, implicit-def dead early-clobber $rax, 12, implicit-def dead early-clobber $rbx, 12, implicit-def dead early-clobber $rcx, 12, implicit-def dead early-clobber $rdx, 12, implicit-def dead early-clobber $rsi, 12, implicit-def dead early-clobber $rdi, 12, implicit-def dead early-clobber $rbp, 12, implicit-def dead early-clobber $r8, 12, implicit-def dead early-clobber $r9, 12, implicit-def dead early-clobber $r10, 12, implicit-def dead early-clobber $r11, 12, implicit-def dead early-clobber $r12, 12, implicit-def dead early-clobber $r13, 12, implicit-def dead early-clobber $r14, 12, implicit-def dead early-clobber $r15
99 %3:gr64, dead %4:gr64 = MULX64rr %1, implicit killed $rdx