[X86][TBM] Add TBM stack folding tests

llvm-svn: 295477

1 files changed, 201 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/X86/stack-folding-tbm.ll b/llvm/test/CodeGen/X86/stack-folding-tbm.ll
new file mode 100644
index 00000000000..fe3c828a69b
--- /dev/null
+++ b/llvm/test/CodeGen/X86/stack-folding-tbm.ll
@@ -0,0 +1,201 @@
+; RUN: llc -O3 -disable-peephole -mtriple=x86_64-unknown-unknown -mattr=+bmi,+tbm < %s | FileCheck %s
+
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-unknown"
+
+; Stack reload folding tests.
+;
+; By including a nop call with sideeffects we can force a partial register spill of the
+; relevant registers and check that the reload is correctly folded into the instruction.
+
+define i32 @stack_fold_bextri_u32(i32 %a0) {
+  ;CHECK-LABEL: stack_fold_bextri_u32
+  ;CHECK:       # BB#0:
+  ;CHECK:       bextr $2814, {{-?[0-9]*}}(%rsp), %eax {{.*#+}} 4-byte Folded Reload
+  %1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
+  %2 = tail call i32 @llvm.x86.tbm.bextri.u32(i32 %a0, i32 2814)
+  ret i32 %2
+}
+declare i32 @llvm.x86.tbm.bextri.u32(i32, i32)
+
+define i64 @stack_fold_bextri_u64(i64 %a0) {
+  ;CHECK-LABEL: stack_fold_bextri_u64
+  ;CHECK:       # BB#0:
+  ;CHECK:       bextr $2814, {{-?[0-9]*}}(%rsp), %rax {{.*#+}} 8-byte Folded Reload
+  %1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
+  %2 = tail call i64 @llvm.x86.tbm.bextri.u64(i64 %a0, i64 2814)
+  ret i64 %2
+}
+declare i64 @llvm.x86.tbm.bextri.u64(i64, i64)
+
+define i32 @stack_fold_blcfill_u32(i32 %a0) {
+  ;CHECK-LABEL: stack_fold_blcfill_u32
+  ;CHECK:       blcfill {{-?[0-9]*}}(%rsp), %eax {{.*#+}} 4-byte Folded Reload
+  %1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
+  %2 = add i32 %a0, 1
+  %3 = and i32 %a0, %2
+  ret i32 %3
+}
+
+define i64 @stack_fold_blcfill_u64(i64 %a0) {
+  ;CHECK-LABEL: stack_fold_blcfill_u64
+  ;CHECK:       blcfill {{-?[0-9]*}}(%rsp), %rax {{.*#+}} 8-byte Folded Reload
+  %1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
+  %2 = add i64 %a0, 1
+  %3 = and i64 %a0, %2
+  ret i64 %3
+}
+
+define i32 @stack_fold_blci_u32(i32 %a0) {
+  ;CHECK-LABEL: stack_fold_blci_u32
+  ;CHECK:       blci {{-?[0-9]*}}(%rsp), %eax {{.*#+}} 4-byte Folded Reload
+  %1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
+  %2 = add i32 %a0, 1
+  %3 = xor i32 %2, -1
+  %4 = or i32 %a0, %3
+  ret i32 %4
+}
+
+define i64 @stack_fold_blci_u64(i64 %a0) {
+  ;CHECK-LABEL: stack_fold_blci_u64
+  ;CHECK:       blci {{-?[0-9]*}}(%rsp), %rax {{.*#+}} 8-byte Folded Reload
+  %1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
+  %2 = add i64 %a0, 1
+  %3 = xor i64 %2, -1
+  %4 = or i64 %a0, %3
+  ret i64 %4
+}
+
+define i32 @stack_fold_blcic_u32(i32 %a0) {
+  ;CHECK-LABEL: stack_fold_blcic_u32
+  ;CHECK:       blcic {{-?[0-9]*}}(%rsp), %eax {{.*#+}} 4-byte Folded Reload
+  %1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
+  %2 = add i32 %a0, 1
+  %3 = xor i32 %a0, -1
+  %4 = and i32 %2, %3
+  ret i32 %4
+}
+
+define i64 @stack_fold_blcic_u64(i64 %a0) {
+  ;CHECK-LABEL: stack_fold_blcic_u64
+  ;CHECK:       blcic {{-?[0-9]*}}(%rsp), %rax {{.*#+}} 8-byte Folded Reload
+  %1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
+  %2 = add i64 %a0, 1
+  %3 = xor i64 %a0, -1
+  %4 = and i64 %2, %3
+  ret i64 %4
+}
+
+define i32 @stack_fold_blcmsk_u32(i32 %a0) {
+  ;CHECK-LABEL: stack_fold_blcmsk_u32
+  ;CHECK:       blcmsk {{-?[0-9]*}}(%rsp), %eax {{.*#+}} 4-byte Folded Reload
+  %1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
+  %2 = add i32 %a0, 1
+  %3 = xor i32 %a0, %2
+  ret i32 %3
+}
+
+define i64 @stack_fold_blcmsk_u64(i64 %a0) {
+  ;CHECK-LABEL: stack_fold_blcmsk_u64
+  ;CHECK:       blcmsk {{-?[0-9]*}}(%rsp), %rax {{.*#+}} 8-byte Folded Reload
+  %1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
+  %2 = add i64 %a0, 1
+  %3 = xor i64 %a0, %2
+  ret i64 %3
+}
+
+define i32 @stack_fold_blcs_u32(i32 %a0) {
+  ;CHECK-LABEL: stack_fold_blcs_u32
+  ;CHECK:       blcs {{-?[0-9]*}}(%rsp), %eax {{.*#+}} 4-byte Folded Reload
+  %1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
+  %2 = add i32 %a0, 1
+  %3 = or i32 %a0, %2
+  ret i32 %3
+}
+
+define i64 @stack_fold_blcs_u64(i64 %a0) {
+  ;CHECK-LABEL: stack_fold_blcs_u64
+  ;CHECK:       blcs {{-?[0-9]*}}(%rsp), %rax {{.*#+}} 8-byte Folded Reload
+  %1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
+  %2 = add i64 %a0, 1
+  %3 = or i64 %a0, %2
+  ret i64 %3
+}
+
+define i32 @stack_fold_blsfill_u32(i32 %a0) {
+  ;CHECK-LABEL: stack_fold_blsfill_u32
+  ;CHECK:       blsfill {{-?[0-9]*}}(%rsp), %eax {{.*#+}} 4-byte Folded Reload
+  %1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
+  %2 = sub i32 %a0, 1
+  %3 = or i32 %a0, %2
+  ret i32 %3
+}
+
+define i64 @stack_fold_blsfill_u64(i64 %a0) {
+  ;CHECK-LABEL: stack_fold_blsfill_u64
+  ;CHECK:       blsfill {{-?[0-9]*}}(%rsp), %rax {{.*#+}} 8-byte Folded Reload
+  %1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
+  %2 = sub i64 %a0, 1
+  %3 = or i64 %a0, %2
+  ret i64 %3
+}
+
+define i32 @stack_fold_blsic_u32(i32 %a0) {
+  ;CHECK-LABEL: stack_fold_blsic_u32
+  ;CHECK:       blsic {{-?[0-9]*}}(%rsp), %eax {{.*#+}} 4-byte Folded Reload
+  %1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
+  %2 = sub i32 %a0, 1
+  %3 = xor i32 %a0, -1
+  %4 = or i32 %2, %3
+  ret i32 %4
+}
+
+define i64 @stack_fold_blsic_u64(i64 %a0) {
+  ;CHECK-LABEL: stack_fold_blsic_u64
+  ;CHECK:       blsic {{-?[0-9]*}}(%rsp), %rax {{.*#+}} 8-byte Folded Reload
+  %1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
+  %2 = sub i64 %a0, 1
+  %3 = xor i64 %a0, -1
+  %4 = or i64 %2, %3
+  ret i64 %4
+}
+
+define i32 @stack_fold_t1mskc_u32(i32 %a0) {
+  ;CHECK-LABEL: stack_fold_t1mskc_u32
+  ;CHECK:       t1mskc {{-?[0-9]*}}(%rsp), %eax {{.*#+}} 4-byte Folded Reload
+  %1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
+  %2 = add i32 %a0, 1
+  %3 = xor i32 %a0, -1
+  %4 = or i32 %2, %3
+  ret i32 %4
+}
+
+define i64 @stack_fold_t1mskc_u64(i64 %a0) {
+  ;CHECK-LABEL: stack_fold_t1mskc_u64
+  ;CHECK:       t1mskc {{-?[0-9]*}}(%rsp), %rax {{.*#+}} 8-byte Folded Reload
+  %1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
+  %2 = add i64 %a0, 1
+  %3 = xor i64 %a0, -1
+  %4 = or i64 %2, %3
+  ret i64 %4
+}
+
+define i32 @stack_fold_tzmsk_u32(i32 %a0) {
+  ;CHECK-LABEL: stack_fold_tzmsk_u32
+  ;CHECK:       tzmsk {{-?[0-9]*}}(%rsp), %eax {{.*#+}} 4-byte Folded Reload
+  %1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
+  %2 = sub i32 %a0, 1
+  %3 = xor i32 %a0, -1
+  %4 = and i32 %2, %3
+  ret i32 %4
+}
+
+define i64 @stack_fold_tzmsk_u64(i64 %a0) {
+  ;CHECK-LABEL: stack_fold_tzmsk_u64
+  ;CHECK:       tzmsk {{-?[0-9]*}}(%rsp), %rax {{.*#+}} 8-byte Folded Reload
+  %1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
+  %2 = sub i64 %a0, 1
+  %3 = xor i64 %a0, -1
+  %4 = and i64 %2, %3
+  ret i64 %4
+}