1 files changed, 122 insertions, 0 deletions
diff --git a/test/CodeGen/Mips/llvm-ir/sub.ll b/test/CodeGen/Mips/llvm-ir/sub.ll
new file mode 100644
index 0000000..1649758
--- /dev/null
+++ b/test/CodeGen/Mips/llvm-ir/sub.ll
@@ -0,0 +1,122 @@
+; RUN: llc < %s -march=mips -mcpu=mips2 | FileCheck %s \
+; RUN:    -check-prefix=ALL -check-prefix=NOT-R2-R6 -check-prefix=GP32
+; RUN: llc < %s -march=mips -mcpu=mips32 | FileCheck %s \
+; RUN:    -check-prefix=ALL -check-prefix=NOT-R2-R6 -check-prefix=GP32
+; RUN: llc < %s -march=mips -mcpu=mips32r2 | FileCheck %s \
+; RUN:    -check-prefix=ALL -check-prefix=R2-R6 -check-prefix=GP32
+; RUN: llc < %s -march=mips -mcpu=mips32r3 | FileCheck %s \
+; RUN:    -check-prefix=ALL -check-prefix=R2-R6 -check-prefix=GP32
+; RUN: llc < %s -march=mips -mcpu=mips32r5 | FileCheck %s \
+; RUN:    -check-prefix=ALL -check-prefix=R2-R6 -check-prefix=GP32
+; RUN: llc < %s -march=mips -mcpu=mips32r6 | FileCheck %s \
+; RUN:    -check-prefix=ALL -check-prefix=R2-R6 -check-prefix=GP32
+; RUN: llc < %s -march=mips64 -mcpu=mips3 | FileCheck %s \
+; RUN:    -check-prefix=ALL -check-prefix=NOT-R2-R6 -check-prefix=GP64
+; RUN: llc < %s -march=mips64 -mcpu=mips4 | FileCheck %s \
+; RUN:    -check-prefix=ALL -check-prefix=NOT-R2-R6 -check-prefix=GP64
+; RUN: llc < %s -march=mips64 -mcpu=mips64 | FileCheck %s \
+; RUN:    -check-prefix=ALL -check-prefix=NOT-R2-R6 -check-prefix=GP64
+; RUN: llc < %s -march=mips64 -mcpu=mips64r2 | FileCheck %s \
+; RUN:    -check-prefix=ALL -check-prefix=R2-R6 -check-prefix=GP64
+; RUN: llc < %s -march=mips64 -mcpu=mips64r3 | FileCheck %s \
+; RUN:    -check-prefix=ALL -check-prefix=R2-R6 -check-prefix=GP64
+; RUN: llc < %s -march=mips64 -mcpu=mips64r5 | FileCheck %s \
+; RUN:    -check-prefix=ALL -check-prefix=R2-R6 -check-prefix=GP64
+; RUN: llc < %s -march=mips64 -mcpu=mips64r6 | FileCheck %s \
+; RUN:    -check-prefix=ALL -check-prefix=R2-R6 -check-prefix=GP64
+
+define signext i1 @sub_i1(i1 signext %a, i1 signext %b) {
+entry:
+; ALL-LABEL: sub_i1:
+
+  ; ALL:            subu    $[[T0:[0-9]+]], $4, $5
+  ; ALL:            sll     $[[T0]], $[[T0]], 31
+  ; ALL:            sra     $2, $[[T0]], 31
+
+  %r = sub i1 %a, %b
+  ret i1 %r
+}
+
+define signext i8 @sub_i8(i8 signext %a, i8 signext %b) {
+entry:
+; ALL-LABEL: sub_i8:
+
+  ; NOT-R2-R6:      subu    $[[T0:[0-9]+]], $4, $5
+  ; NOT-R2-R6:      sll     $[[T0]], $[[T0]], 24
+  ; NOT-R2-R6:      sra     $2, $[[T0]], 24
+
+  ; R2-R6:          subu    $[[T0:[0-9]+]], $4, $5
+  ; R2-R6:          seb     $2, $[[T0:[0-9]+]]
+
+  %r = sub i8 %a, %b
+  ret i8 %r
+}
+
+define signext i16 @sub_i16(i16 signext %a, i16 signext %b) {
+entry:
+; ALL-LABEL: sub_i16:
+
+  ; NOT-R2-R6:      subu    $[[T0:[0-9]+]], $4, $5
+  ; NOT-R2-R6:      sll     $[[T0]], $[[T0]], 16
+  ; NOT-R2-R6:      sra     $2, $[[T0]], 16
+
+  ; R2-R6:          subu    $[[T0:[0-9]+]], $4, $5
+  ; R2-R6:          seh     $2, $[[T0:[0-9]+]]
+
+  %r = sub i16 %a, %b
+  ret i16 %r
+}
+
+define signext i32 @sub_i32(i32 signext %a, i32 signext %b) {
+entry:
+; ALL-LABEL: sub_i32:
+
+  ; ALL:            subu    $2, $4, $5
+
+  %r = sub i32 %a, %b
+  ret i32 %r
+}
+
+define signext i64 @sub_i64(i64 signext %a, i64 signext %b) {
+entry:
+; ALL-LABEL: sub_i64:
+
+  ; GP32:           subu    $3, $5, $7
+  ; GP32:           sltu    $[[T0:[0-9]+]], $5, $7
+  ; GP32:           addu    $[[T1:[0-9]+]], $[[T0]], $6
+  ; GP32:           subu    $2, $4, $[[T1]]
+
+  ; GP64:           dsubu   $2, $4, $5
+
+  %r = sub i64 %a, %b
+  ret i64 %r
+}
+
+define signext i128 @sub_i128(i128 signext %a, i128 signext %b) {
+entry:
+; ALL-LABEL: sub_i128:
+
+  ; GP32:       lw        $[[T0:[0-9]+]], 20($sp)
+  ; GP32:       sltu      $[[T1:[0-9]+]], $5, $[[T0]]
+  ; GP32:       lw        $[[T2:[0-9]+]], 16($sp)
+  ; GP32:       addu      $[[T3:[0-9]+]], $[[T1]], $[[T2]]
+  ; GP32:       lw        $[[T4:[0-9]+]], 24($sp)
+  ; GP32:       lw        $[[T5:[0-9]+]], 28($sp)
+  ; GP32:       subu      $[[T6:[0-9]+]], $7, $[[T5]]
+  ; GP32:       subu      $2, $4, $[[T3]]
+  ; GP32:       sltu      $[[T8:[0-9]+]], $6, $[[T4]]
+  ; GP32:       addu      $[[T9:[0-9]+]], $[[T8]], $[[T0]]
+  ; GP32:       subu      $3, $5, $[[T9]]
+  ; GP32:       sltu      $[[T10:[0-9]+]], $7, $[[T5]]
+  ; GP32:       addu      $[[T11:[0-9]+]], $[[T10]], $[[T4]]
+  ; GP32:       subu      $4, $6, $[[T11]]
+  ; GP32:       move      $5, $[[T6]]
+
+  ; GP64:       dsubu     $3, $5, $7
+  ; GP64:       sltu      $[[T0:[0-9]+]], $5, $7
+  ; GP64:       daddu     $[[T1:[0-9]+]], $[[T0]], $6
+  ; GP64:       dsubu     $2, $4, $[[T1]]
+
+  %r = sub i128 %a, %b
+  ret i128 %r
+}