GlobalISel[AArch64]: support pointer types in argument lowering.

They're basically i64 for AArch64, but we'll leave them intact for stranger
targets. Also add some tests for the (very few) other cases we can handle right
now.

llvm-svn: 276689

1 files changed, 52 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/AArch64/GlobalISel/arm64-callingconv.ll b/llvm/test/CodeGen/AArch64/GlobalISel/arm64-callingconv.ll
new file mode 100644
index 00000000000..7164e367f31
--- /dev/null
+++ b/llvm/test/CodeGen/AArch64/GlobalISel/arm64-callingconv.ll
@@ -0,0 +1,52 @@
+; RUN: llc -O0 -stop-after=irtranslator -global-isel -verify-machineinstrs %s -o - 2>&1 | FileCheck %s
+; REQUIRES: global-isel
+
+target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
+target triple = "aarch64-linux-gnu"
+
+; CHECK-LABEL: name: args_i32
+; CHECK: %[[ARG0:[0-9]+]](32) = COPY %w0
+; CHECK: %{{[0-9]+}}(32) = COPY %w1
+; CHECK: %{{[0-9]+}}(32) = COPY %w2
+; CHECK: %{{[0-9]+}}(32) = COPY %w3
+; CHECK: %{{[0-9]+}}(32) = COPY %w4
+; CHECK: %{{[0-9]+}}(32) = COPY %w5
+; CHECK: %{{[0-9]+}}(32) = COPY %w6
+; CHECK: %{{[0-9]+}}(32) = COPY %w7
+; CHECK: %w0 = COPY %[[ARG0]]
+
+define i32 @args_i32(i32 %w0, i32 %w1, i32 %w2, i32 %w3,
+                     i32 %w4, i32 %w5, i32 %w6, i32 %w7) {
+  ret i32 %w0
+}
+
+; CHECK-LABEL: name: args_i64
+; CHECK: %[[ARG0:[0-9]+]](64) = COPY %x0
+; CHECK: %{{[0-9]+}}(64) = COPY %x1
+; CHECK: %{{[0-9]+}}(64) = COPY %x2
+; CHECK: %{{[0-9]+}}(64) = COPY %x3
+; CHECK: %{{[0-9]+}}(64) = COPY %x4
+; CHECK: %{{[0-9]+}}(64) = COPY %x5
+; CHECK: %{{[0-9]+}}(64) = COPY %x6
+; CHECK: %{{[0-9]+}}(64) = COPY %x7
+; CHECK: %x0 = COPY %[[ARG0]]
+define i64 @args_i64(i64 %x0, i64 %x1, i64 %x2, i64 %x3,
+                     i64 %x4, i64 %x5, i64 %x6, i64 %x7) {
+  ret i64 %x0
+}
+
+
+; CHECK-LABEL: name: args_ptrs
+; CHECK: %[[ARG0:[0-9]+]](64) = COPY %x0
+; CHECK: %{{[0-9]+}}(64) = COPY %x1
+; CHECK: %{{[0-9]+}}(64) = COPY %x2
+; CHECK: %{{[0-9]+}}(64) = COPY %x3
+; CHECK: %{{[0-9]+}}(64) = COPY %x4
+; CHECK: %{{[0-9]+}}(64) = COPY %x5
+; CHECK: %{{[0-9]+}}(64) = COPY %x6
+; CHECK: %{{[0-9]+}}(64) = COPY %x7
+; CHECK: %x0 = COPY %[[ARG0]]
+define i8* @args_ptrs(i8* %x0, i16* %x1, <2 x i8>* %x2, {i8, i16, i32}* %x3,
+                      [3 x float]* %x4, double* %x5, i8* %x6, i8* %x7) {
+  ret i8* %x0
+}