| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -instcombine -S < %s | FileCheck %s |
| |
| define i8* @memcpy_nonconst_n(i8* %d, i8* nocapture readonly %s, i64 %n) { |
| ; CHECK-LABEL: @memcpy_nonconst_n( |
| ; CHECK-NEXT: [[R:%.*]] = tail call i8* @mempcpy(i8* [[D:%.*]], i8* [[S:%.*]], i64 [[N:%.*]]) |
| ; CHECK-NEXT: ret i8* [[R]] |
| ; |
| %r = tail call i8* @mempcpy(i8* %d, i8* %s, i64 %n) |
| ret i8* %r |
| } |
| |
| define i8* @memcpy_small_const_n(i8* %d, i8* nocapture readonly %s) { |
| ; CHECK-LABEL: @memcpy_small_const_n( |
| ; CHECK-NEXT: [[R:%.*]] = tail call i8* @mempcpy(i8* [[D:%.*]], i8* [[S:%.*]], i64 8) |
| ; CHECK-NEXT: ret i8* [[R]] |
| ; |
| %r = tail call i8* @mempcpy(i8* %d, i8* %s, i64 8) |
| ret i8* %r |
| } |
| |
| define i8* @memcpy_big_const_n(i8* %d, i8* nocapture readonly %s) { |
| ; CHECK-LABEL: @memcpy_big_const_n( |
| ; CHECK-NEXT: [[R:%.*]] = tail call i8* @mempcpy(i8* [[D:%.*]], i8* [[S:%.*]], i64 1024) |
| ; CHECK-NEXT: ret i8* [[R]] |
| ; |
| %r = tail call i8* @mempcpy(i8* %d, i8* %s, i64 1024) |
| ret i8* %r |
| } |
| |
| declare i8* @mempcpy(i8*, i8* nocapture readonly, i64) |
