================
@@ -0,0 +1,34 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
UTC_ARGS: --version 4
+;RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s
--check-prefixes=X64
+
+define i64 @sub8(i64 noundef %res, ptr %byte) {
+; X64-LABEL: sub8:
+; X64: # %bb.0: # %entry
+; X64-NEXT: movq %rdi, %rax
+; X64-NEXT: movb (%rsi), %al
+; X64-NEXT: retq
+entry:
+ %and = and i64 %res, -256
+ %d = load i8, ptr %byte, align 1
+ %conv2 = zext i8 %d to i64
+ %or = or i64 %and, %conv2
+ ret i64 %or
+}
+
+define i64 @sub16(i64 noundef %res, ptr %byte) {
+; X64-LABEL: sub16:
+; X64: # %bb.0: # %entry
+; X64-NEXT: movq %rdi, %rax
+; X64-NEXT: movw (%rsi), %ax
+; X64-NEXT: retq
+entry:
+ %and = and i64 %res, -65536
+ %d = load i16, ptr %byte, align 1
+ %conv2 = zext i16 %d to i64
+ %or = or i64 %and, %conv2
+ ret i64 %or
+}
+
+
+
+
----------------
david-xl wrote:
done
https://github.com/llvm/llvm-project/pull/75978
_______________________________________________
cfe-commits mailing list
cfe-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
