[llvm] [AIX] Support per global code model. (PR #79202)

[zhijian lin via llvm-commits]

================
@@ -58,6 +59,32 @@ entry:
 ; CHECK: lwz 3, 0([[ADDR]])
 ; CHECK: blr
 
+define i32 @E() {
+entry:
+  %0 = load i32, ptr @e, align 4
+  ret i32 %0
+}
+; CHECK-LARGE: addis [[HI:[0-9]+]], L..C[[TL_E:[0-9]+]]@u(2)
+; CHECK-LARGE32: lwz [[SCRATCH:[0-9]+]], L..C[[TL_E]]@l([[HI]])
+; CHECK-SMALL32: lwz [[SCRATCH:[0-9]+]], L..C[[TL_E:[0-9]+]](2)
+; CHECK-LARGE64: ld  [[SCRATCH:[0-9]+]], L..C[[TL_E]]@l([[HI]])
+; CHECK-SMALL64: ld  [[SCRATCH:[0-9]+]], L..C[[TL_E:[0-9]+]](2)
+; CHECK: lwz 3, 0([[SCRATCH]])
+; CHECK: blr
+
+define i32 @F() {
+entry:
+  %0 = load i32, ptr @f, align 4
+  ret i32 %0
+}
+; CHECK-LARGE: addis [[HI:[0-9]+]], L..C[[TL_F:[0-9]+]]@u(2)
+; CHECK-LARGE32: lwz [[SCRATCH:[0-9]+]], L..C[[TL_F]]@l([[HI]])
+; CHECK-SMALL32: lwz [[SCRATCH:[0-9]+]], L..C[[TL_F:[0-9]+]](2)
+; CHECK-LARGE64: ld [[SCRATCH:[0-9]+]], L..C[[TL_F]]@l([[HI]])
+; CHECK-SMALL64: ld  [[SCRATCH:[0-9]+]], L..C[[TL_F:[0-9]+]](2)
+; CHECK: lwz 3, 0([[SCRATCH]])
----------------
diggerlin wrote:

since the only different of 32bit and 64 bit is `lwz` and `ld`
for example:
 CHECK-LARGE32: lwz [[SCRATCH:[0-9]+]], L..C[[TL_F]]@l([[HI]])
 CHECK-LARGE64: ld [[SCRATCH:[0-9]+]], L..C[[TL_F]]@l([[HI]])
 
 I will change like as following to make the test case simple.
 
 RUN: %s | FileCheck --check-prefixes=CHECK,CHECK32,CHECK-LARGE,CHECK-LARGE32
 
 to 
 
 RUN: %s | FileCheck -DINSTR=lwz --check-prefixes=CHECK,CHECK32,CHECK-LARGE
 
 CHECK-LARGE: [[INSTR]] [[SCRATCH:[0-9]+]], L..C[[TL_F]]@l([[HI]]

https://github.com/llvm/llvm-project/pull/79202