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Diffstat (limited to 'llvm/test/CodeGen/AArch64/abds.ll')
-rw-r--r--llvm/test/CodeGen/AArch64/abds.ll71
1 files changed, 27 insertions, 44 deletions
diff --git a/llvm/test/CodeGen/AArch64/abds.ll b/llvm/test/CodeGen/AArch64/abds.ll
index 62db30f..bbdb116 100644
--- a/llvm/test/CodeGen/AArch64/abds.ll
+++ b/llvm/test/CodeGen/AArch64/abds.ll
@@ -73,9 +73,8 @@ define i16 @abd_ext_i16_i32(i16 %a, i32 %b) nounwind {
; CHECK-LABEL: abd_ext_i16_i32:
; CHECK: // %bb.0:
; CHECK-NEXT: sxth w8, w0
-; CHECK-NEXT: sub w9, w1, w8
; CHECK-NEXT: subs w8, w8, w1
-; CHECK-NEXT: csel w0, w8, w9, gt
+; CHECK-NEXT: cneg w0, w8, le
; CHECK-NEXT: ret
%aext = sext i16 %a to i64
%bext = sext i32 %b to i64
@@ -104,9 +103,8 @@ define i16 @abd_ext_i16_undef(i16 %a, i16 %b) nounwind {
define i32 @abd_ext_i32(i32 %a, i32 %b) nounwind {
; CHECK-LABEL: abd_ext_i32:
; CHECK: // %bb.0:
-; CHECK-NEXT: sub w8, w1, w0
-; CHECK-NEXT: subs w9, w0, w1
-; CHECK-NEXT: csel w0, w9, w8, gt
+; CHECK-NEXT: subs w8, w0, w1
+; CHECK-NEXT: cneg w0, w8, le
; CHECK-NEXT: ret
%aext = sext i32 %a to i64
%bext = sext i32 %b to i64
@@ -120,9 +118,8 @@ define i32 @abd_ext_i32_i16(i32 %a, i16 %b) nounwind {
; CHECK-LABEL: abd_ext_i32_i16:
; CHECK: // %bb.0:
; CHECK-NEXT: sxth w8, w1
-; CHECK-NEXT: sub w9, w8, w0
; CHECK-NEXT: subs w8, w0, w8
-; CHECK-NEXT: csel w0, w8, w9, gt
+; CHECK-NEXT: cneg w0, w8, le
; CHECK-NEXT: ret
%aext = sext i32 %a to i64
%bext = sext i16 %b to i64
@@ -135,9 +132,8 @@ define i32 @abd_ext_i32_i16(i32 %a, i16 %b) nounwind {
define i32 @abd_ext_i32_undef(i32 %a, i32 %b) nounwind {
; CHECK-LABEL: abd_ext_i32_undef:
; CHECK: // %bb.0:
-; CHECK-NEXT: sub w8, w1, w0
-; CHECK-NEXT: subs w9, w0, w1
-; CHECK-NEXT: csel w0, w9, w8, gt
+; CHECK-NEXT: subs w8, w0, w1
+; CHECK-NEXT: cneg w0, w8, le
; CHECK-NEXT: ret
%aext = sext i32 %a to i64
%bext = sext i32 %b to i64
@@ -150,9 +146,8 @@ define i32 @abd_ext_i32_undef(i32 %a, i32 %b) nounwind {
define i64 @abd_ext_i64(i64 %a, i64 %b) nounwind {
; CHECK-LABEL: abd_ext_i64:
; CHECK: // %bb.0:
-; CHECK-NEXT: sub x8, x1, x0
-; CHECK-NEXT: subs x9, x0, x1
-; CHECK-NEXT: csel x0, x9, x8, gt
+; CHECK-NEXT: subs x8, x0, x1
+; CHECK-NEXT: cneg x0, x8, le
; CHECK-NEXT: ret
%aext = sext i64 %a to i128
%bext = sext i64 %b to i128
@@ -165,9 +160,8 @@ define i64 @abd_ext_i64(i64 %a, i64 %b) nounwind {
define i64 @abd_ext_i64_undef(i64 %a, i64 %b) nounwind {
; CHECK-LABEL: abd_ext_i64_undef:
; CHECK: // %bb.0:
-; CHECK-NEXT: sub x8, x1, x0
-; CHECK-NEXT: subs x9, x0, x1
-; CHECK-NEXT: csel x0, x9, x8, gt
+; CHECK-NEXT: subs x8, x0, x1
+; CHECK-NEXT: cneg x0, x8, le
; CHECK-NEXT: ret
%aext = sext i64 %a to i128
%bext = sext i64 %b to i128
@@ -183,8 +177,7 @@ define i128 @abd_ext_i128(i128 %a, i128 %b) nounwind {
; CHECK-NEXT: subs x8, x0, x2
; CHECK-NEXT: sbc x9, x1, x3
; CHECK-NEXT: subs x10, x2, x0
-; CHECK-NEXT: sbc x11, x3, x1
-; CHECK-NEXT: sbcs xzr, x3, x1
+; CHECK-NEXT: sbcs x11, x3, x1
; CHECK-NEXT: csel x0, x8, x10, lt
; CHECK-NEXT: csel x1, x9, x11, lt
; CHECK-NEXT: ret
@@ -202,8 +195,7 @@ define i128 @abd_ext_i128_undef(i128 %a, i128 %b) nounwind {
; CHECK-NEXT: subs x8, x0, x2
; CHECK-NEXT: sbc x9, x1, x3
; CHECK-NEXT: subs x10, x2, x0
-; CHECK-NEXT: sbc x11, x3, x1
-; CHECK-NEXT: sbcs xzr, x3, x1
+; CHECK-NEXT: sbcs x11, x3, x1
; CHECK-NEXT: csel x0, x8, x10, lt
; CHECK-NEXT: csel x1, x9, x11, lt
; CHECK-NEXT: ret
@@ -250,9 +242,8 @@ define i16 @abd_minmax_i16(i16 %a, i16 %b) nounwind {
define i32 @abd_minmax_i32(i32 %a, i32 %b) nounwind {
; CHECK-LABEL: abd_minmax_i32:
; CHECK: // %bb.0:
-; CHECK-NEXT: sub w8, w1, w0
-; CHECK-NEXT: subs w9, w0, w1
-; CHECK-NEXT: csel w0, w9, w8, gt
+; CHECK-NEXT: subs w8, w0, w1
+; CHECK-NEXT: cneg w0, w8, le
; CHECK-NEXT: ret
%min = call i32 @llvm.smin.i32(i32 %a, i32 %b)
%max = call i32 @llvm.smax.i32(i32 %a, i32 %b)
@@ -263,9 +254,8 @@ define i32 @abd_minmax_i32(i32 %a, i32 %b) nounwind {
define i64 @abd_minmax_i64(i64 %a, i64 %b) nounwind {
; CHECK-LABEL: abd_minmax_i64:
; CHECK: // %bb.0:
-; CHECK-NEXT: sub x8, x1, x0
-; CHECK-NEXT: subs x9, x0, x1
-; CHECK-NEXT: csel x0, x9, x8, gt
+; CHECK-NEXT: subs x8, x0, x1
+; CHECK-NEXT: cneg x0, x8, le
; CHECK-NEXT: ret
%min = call i64 @llvm.smin.i64(i64 %a, i64 %b)
%max = call i64 @llvm.smax.i64(i64 %a, i64 %b)
@@ -279,8 +269,7 @@ define i128 @abd_minmax_i128(i128 %a, i128 %b) nounwind {
; CHECK-NEXT: subs x8, x0, x2
; CHECK-NEXT: sbc x9, x1, x3
; CHECK-NEXT: subs x10, x2, x0
-; CHECK-NEXT: sbc x11, x3, x1
-; CHECK-NEXT: sbcs xzr, x3, x1
+; CHECK-NEXT: sbcs x11, x3, x1
; CHECK-NEXT: csel x0, x8, x10, lt
; CHECK-NEXT: csel x1, x9, x11, lt
; CHECK-NEXT: ret
@@ -327,9 +316,8 @@ define i16 @abd_cmp_i16(i16 %a, i16 %b) nounwind {
define i32 @abd_cmp_i32(i32 %a, i32 %b) nounwind {
; CHECK-LABEL: abd_cmp_i32:
; CHECK: // %bb.0:
-; CHECK-NEXT: sub w8, w1, w0
-; CHECK-NEXT: subs w9, w0, w1
-; CHECK-NEXT: csel w0, w9, w8, gt
+; CHECK-NEXT: subs w8, w0, w1
+; CHECK-NEXT: cneg w0, w8, le
; CHECK-NEXT: ret
%cmp = icmp slt i32 %a, %b
%ab = sub i32 %a, %b
@@ -341,9 +329,8 @@ define i32 @abd_cmp_i32(i32 %a, i32 %b) nounwind {
define i64 @abd_cmp_i64(i64 %a, i64 %b) nounwind {
; CHECK-LABEL: abd_cmp_i64:
; CHECK: // %bb.0:
-; CHECK-NEXT: sub x8, x1, x0
-; CHECK-NEXT: subs x9, x0, x1
-; CHECK-NEXT: csel x0, x9, x8, gt
+; CHECK-NEXT: subs x8, x0, x1
+; CHECK-NEXT: cneg x0, x8, le
; CHECK-NEXT: ret
%cmp = icmp sge i64 %a, %b
%ab = sub i64 %a, %b
@@ -358,8 +345,7 @@ define i128 @abd_cmp_i128(i128 %a, i128 %b) nounwind {
; CHECK-NEXT: subs x8, x0, x2
; CHECK-NEXT: sbc x9, x1, x3
; CHECK-NEXT: subs x10, x2, x0
-; CHECK-NEXT: sbc x11, x3, x1
-; CHECK-NEXT: sbcs xzr, x3, x1
+; CHECK-NEXT: sbcs x11, x3, x1
; CHECK-NEXT: csel x0, x8, x10, lt
; CHECK-NEXT: csel x1, x9, x11, lt
; CHECK-NEXT: ret
@@ -576,9 +562,8 @@ define i16 @abd_select_i16(i16 %a, i16 %b) nounwind {
define i32 @abd_select_i32(i32 %a, i32 %b) nounwind {
; CHECK-LABEL: abd_select_i32:
; CHECK: // %bb.0:
-; CHECK-NEXT: sub w8, w1, w0
-; CHECK-NEXT: subs w9, w0, w1
-; CHECK-NEXT: csel w0, w9, w8, gt
+; CHECK-NEXT: subs w8, w0, w1
+; CHECK-NEXT: cneg w0, w8, le
; CHECK-NEXT: ret
%cmp = icmp sgt i32 %a, %b
%ab = select i1 %cmp, i32 %a, i32 %b
@@ -590,9 +575,8 @@ define i32 @abd_select_i32(i32 %a, i32 %b) nounwind {
define i64 @abd_select_i64(i64 %a, i64 %b) nounwind {
; CHECK-LABEL: abd_select_i64:
; CHECK: // %bb.0:
-; CHECK-NEXT: sub x8, x1, x0
-; CHECK-NEXT: subs x9, x0, x1
-; CHECK-NEXT: csel x0, x9, x8, gt
+; CHECK-NEXT: subs x8, x0, x1
+; CHECK-NEXT: cneg x0, x8, le
; CHECK-NEXT: ret
%cmp = icmp sge i64 %a, %b
%ab = select i1 %cmp, i64 %a, i64 %b
@@ -607,8 +591,7 @@ define i128 @abd_select_i128(i128 %a, i128 %b) nounwind {
; CHECK-NEXT: subs x8, x0, x2
; CHECK-NEXT: sbc x9, x1, x3
; CHECK-NEXT: subs x10, x2, x0
-; CHECK-NEXT: sbc x11, x3, x1
-; CHECK-NEXT: sbcs xzr, x3, x1
+; CHECK-NEXT: sbcs x11, x3, x1
; CHECK-NEXT: csel x0, x8, x10, lt
; CHECK-NEXT: csel x1, x9, x11, lt
; CHECK-NEXT: ret
generated by cgit v1.1 at 2025-07-31 00:27:19 +0000