1 files changed, 80 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/GlobalISel/arm-unsupported.ll b/test/CodeGen/ARM/GlobalISel/arm-unsupported.ll
new file mode 100644
index 0000000000000..e3680ed2b9298
--- /dev/null
+++ b/test/CodeGen/ARM/GlobalISel/arm-unsupported.ll
@@ -0,0 +1,80 @@
+; RUN: llc -mtriple arm-unknown -verify-machineinstrs -global-isel -global-isel-abort=2 -pass-remarks-missed='gisel*' %s -o - 2>&1 | FileCheck %s
+
+; This file checks that we use the fallback path for things that are known to
+; be unsupported on the ARM target. It should progressively shrink in size.
+
+define <4 x i32> @test_int_vectors(<4 x i32> %a, <4 x i32> %b) {
+; CHECK: remark: {{.*}} unable to lower arguments: <4 x i32> (<4 x i32>, <4 x i32>)*
+; CHECK-LABEL: warning: Instruction selection used fallback path for test_int_vectors
+  %res = add <4 x i32> %a, %b
+  ret <4 x i32> %res
+}
+
+define <4 x float> @test_float_vectors(<4 x float> %a, <4 x float> %b) {
+; CHECK: remark: {{.*}} unable to lower arguments: <4 x float> (<4 x float>, <4 x float>)*
+; CHECK-LABEL: warning: Instruction selection used fallback path for test_float_vectors
+  %res = fadd <4 x float> %a, %b
+  ret <4 x float> %res
+}
+
+define i64 @test_i64(i64 %a, i64 %b) {
+; CHECK: remark: {{.*}} unable to lower arguments: i64 (i64, i64)*
+; CHECK-LABEL: warning: Instruction selection used fallback path for test_i64
+  %res = add i64 %a, %b
+  ret i64 %res
+}
+
+define i128 @test_i128(i128 %a, i128 %b) {
+; CHECK: remark: {{.*}} unable to lower arguments: i128 (i128, i128)*
+; CHECK-LABEL: warning: Instruction selection used fallback path for test_i128
+  %res = add i128 %a, %b
+  ret i128 %res
+}
+
+define i17 @test_funny_ints(i17 %a, i17 %b) {
+; CHECK: remark: {{.*}} unable to lower arguments: i17 (i17, i17)*
+; CHECK-LABEL: warning: Instruction selection used fallback path for test_funny_ints
+  %res = add i17 %a, %b
+  ret i17 %res
+}
+
+define half @test_half(half %a, half %b) {
+; CHECK: remark: {{.*}} unable to lower arguments: half (half, half)*
+; CHECK-LABEL: warning: Instruction selection used fallback path for test_half
+  %res = fadd half %a, %b
+  ret half %res
+}
+
+; On ARM, clang lowers structs to arrays.
+define void @test_arrays([2 x i32] %this.could.come.from.a.struct) {
+; CHECK: remark: {{.*}} unable to lower arguments: void ([2 x i32])*
+; CHECK-LABEL: warning: Instruction selection used fallback path for test_arrays
+  ret void
+}
+
+define void @test_structs({i32, i32} %struct) {
+; CHECK: remark: {{.*}} unable to lower arguments: void ({ i32, i32 })*
+; CHECK-LABEL: warning: Instruction selection used fallback path for test_structs
+  ret void
+}
+
+define void @test_vararg_definition(i32 %a, ...) {
+; CHECK: remark: {{.*}} unable to lower arguments: void (i32, ...)*
+; CHECK-LABEL: warning: Instruction selection used fallback path for test_vararg_definition
+  ret void
+}
+
+define void @test_vararg_call(i32 %a) {
+; CHECK: remark: {{.*}} unable to translate instruction: call
+; CHECK-LABEL: warning: Instruction selection used fallback path for test_vararg_call
+  call void(i32, ...) @test_vararg_definition(i32 %a, i32 %a, i32 %a)
+  ret void
+}
+
+define i32 @test_thumb(i32 %a) #0 {
+; CHECK: remark: {{.*}} unable to lower arguments: i32 (i32)*
+; CHECK-LABEL: warning: Instruction selection used fallback path for test_thumb
+  ret i32 %a
+}
+
+attributes #0 = { "target-features"="+thumb-mode" }