Imported Upstream version 5.18.0.161

Former-commit-id: 4db48158d3a35497b8f118ab21b5f08ac3d86d98

external/llvm/test/CodeGen/ARM/global-merge-external.ll

@@ -0,0 +1,62 @@
+; RUN: llc < %s -mtriple=arm-eabi  -arm-global-merge                                 | FileCheck %s --check-prefixes=CHECK,CHECK-MERGE
+; RUN: llc < %s -mtriple=arm-eabi  -arm-global-merge -global-merge-on-external=true  | FileCheck %s --check-prefixes=CHECK,CHECK-MERGE
+; RUN: llc < %s -mtriple=arm-eabi  -arm-global-merge -global-merge-on-external=false | FileCheck %s --check-prefixes=CHECK,CHECK-NO-MERGE
+; RUN: llc < %s -mtriple=arm-macho -arm-global-merge                                 | FileCheck %s --check-prefixes=CHECK,CHECK-NO-MERGE
+; RUN: llc < %s -mtriple=arm-eabi  -arm-global-merge -relocation-model=pic           | FileCheck %s --check-prefixes=CHECK,CHECK-NO-MERGE
+; RUN: llc < %s -mtriple=thumbv7-win32 -arm-global-merge                             | FileCheck %s --check-prefixes=CHECK-WIN32
+
+@x = global i32 0, align 4
+@y = global i32 0, align 4
+@z = global i32 0, align 4
+
+define void @f1(i32 %a1, i32 %a2) {
+;CHECK:          f1:
+;CHECK:          ldr {{r[0-9]+}}, [[LABEL1:\.?LCPI[0-9]+_[0-9]]]
+;CHECK:          [[LABEL1]]:
+;CHECK-MERGE:    .long .L_MergedGlobals
+;CHECK-NO-MERGE: .long {{_?x}}
+;CHECK-WIN32:    f1:
+;CHECK-WIN32:    movw [[REG1:r[0-9]+]], :lower16:.L_MergedGlobals
+;CHECK-WIN32:    movt [[REG1]], :upper16:.L_MergedGlobals
+  store i32 %a1, i32* @x, align 4
+  store i32 %a2, i32* @y, align 4
+  ret void
+}
+
+define void @g1(i32 %a1, i32 %a2) {
+;CHECK:          g1:
+;CHECK:          ldr {{r[0-9]+}}, [[LABEL2:\.?LCPI[0-9]+_[0-9]]]
+;CHECK:          [[LABEL2]]:
+;CHECK-MERGE:    .long .L_MergedGlobals
+;CHECK-NO-MERGE: .long {{_?y}}
+;CHECK-WIN32:    g1:
+;CHECK-WIN32:    movw [[REG2:r[0-9]+]], :lower16:.L_MergedGlobals
+;CHECK-WIN32:    movt [[REG2]], :upper16:.L_MergedGlobals
+  store i32 %a1, i32* @y, align 4
+  store i32 %a2, i32* @z, align 4
+  ret void
+}
+
+;CHECK-NO-MERGE-NOT: .globl .L_MergedGlobals
+
+;CHECK-MERGE:	.type	.L_MergedGlobals,%object
+;CHECK-MERGE:	.local	.L_MergedGlobals
+;CHECK-MERGE:	.comm	.L_MergedGlobals,12,4
+;CHECK-WIN32:	.lcomm	.L_MergedGlobals,12,4
+
+;CHECK-MERGE:	.globl	x
+;CHECK-MERGE: x = .L_MergedGlobals
+;CHECK-MERGE: .size x, 4
+;CHECK-MERGE:	.globl	y
+;CHECK-MERGE: y = .L_MergedGlobals+4
+;CHECK-MERGE: .size y, 4
+;CHECK-MERGE:	.globl	z
+;CHECK-MERGE: z = .L_MergedGlobals+8
+;CHECK-MERGE: .size z, 4
+
+;CHECK-WIN32:	.globl	x
+;CHECK-WIN32: x = .L_MergedGlobals
+;CHECK-WIN32:	.globl	y
+;CHECK-WIN32: y = .L_MergedGlobals+4
+;CHECK-WIN32:	.globl	z
+;CHECK-WIN32: z = .L_MergedGlobals+8