Revert "ARMLoadStoreOptimizer: Create LDRD/STRD on thumb2"

[oota-llvm.git] / test / CodeGen / ARM / domain-conv-vmovs.ll

diff --git a/test/CodeGen/ARM/domain-conv-vmovs.ll b/test/CodeGen/ARM/domain-conv-vmovs.ll
index f1cd9f58404149d31002f5d4e2e1872fa97cd282..d6528db741cda70975beb19d70e3e2b309b9d978 100644 (file)
--- a/test/CodeGen/ARM/domain-conv-vmovs.ll
+++ b/test/CodeGen/ARM/domain-conv-vmovs.ll
@@ -1,7 +1,7 @@
-; RUN: llc -mtriple=armv7-none-linux-gnueabi -mcpu=cortex-a9 -mattr=+neon,+neonfp -float-abi=hard < %s | FileCheck %s
+; RUN: llc -verify-machineinstrs -mtriple=armv7-none-linux-gnueabi -mcpu=cortex-a9 -mattr=+neon,+neonfp -float-abi=hard < %s | FileCheck %s
 
 define <2 x float> @test_vmovs_via_vext_lane0to0(float %arg, <2 x float> %in) {
-; CHECK: test_vmovs_via_vext_lane0to0:
+; CHECK-LABEL: test_vmovs_via_vext_lane0to0:
   %vec = insertelement <2 x float> %in, float %arg, i32 0
   %res = fadd <2 x float> %vec, %vec
 
@@ -13,7 +13,7 @@ define <2 x float> @test_vmovs_via_vext_lane0to0(float %arg, <2 x float> %in) {
 }
 
 define <2 x float> @test_vmovs_via_vext_lane0to1(float %arg, <2 x float> %in) {
-; CHECK: test_vmovs_via_vext_lane0to1:
+; CHECK-LABEL: test_vmovs_via_vext_lane0to1:
   %vec = insertelement <2 x float> %in, float %arg, i32 1
   %res = fadd <2 x float> %vec, %vec
 
@@ -25,7 +25,7 @@ define <2 x float> @test_vmovs_via_vext_lane0to1(float %arg, <2 x float> %in) {
 }
 
 define <2 x float> @test_vmovs_via_vext_lane1to0(float, float %arg, <2 x float> %in) {
-; CHECK: test_vmovs_via_vext_lane1to0:
+; CHECK-LABEL: test_vmovs_via_vext_lane1to0:
   %vec = insertelement <2 x float> %in, float %arg, i32 0
   %res = fadd <2 x float> %vec, %vec
 
@@ -37,7 +37,7 @@ define <2 x float> @test_vmovs_via_vext_lane1to0(float, float %arg, <2 x float>
 }
 
 define <2 x float> @test_vmovs_via_vext_lane1to1(float, float %arg, <2 x float> %in) {
-; CHECK: test_vmovs_via_vext_lane1to1:
+; CHECK-LABEL: test_vmovs_via_vext_lane1to1:
   %vec = insertelement <2 x float> %in, float %arg, i32 1
   %res = fadd <2 x float> %vec, %vec
 
@@ -50,7 +50,7 @@ define <2 x float> @test_vmovs_via_vext_lane1to1(float, float %arg, <2 x float>
 
 
 define float @test_vmovs_via_vdup(float, float %ret, float %lhs, float %rhs) {
-; CHECK: test_vmovs_via_vdup:
+; CHECK-LABEL: test_vmovs_via_vdup:
 
   ; Do an operation (which will end up NEON because of +neonfp) to convince the
   ; execution-domain pass that NEON is a good thing to use.
@@ -62,3 +62,59 @@ define float @test_vmovs_via_vdup(float, float %ret, float %lhs, float %rhs) {
   ret float %res
 }
 
+declare float @llvm.sqrt.f32(float)
+
+declare void @bar()
+
+; This is a comp
+define float @test_ineligible(float, float %in) {
+; CHECK-LABEL: test_ineligible:
+
+  %sqrt = call float @llvm.sqrt.f32(float %in)
+  %val = fadd float %sqrt, %sqrt
+
+  ; This call forces a move from a callee-saved register to the return-reg. That
+  ; move is not eligible for conversion to a d-register instructions because the
+  ; use-def chains would be messed up. Primarily a compile-test (we used to
+  ; internal fault).
+  call void @bar()
+; CHECK: bl bar
+; CHECK: vext.32
+; CHECK: vext.32
+  ret float %val
+}
+
+define i32 @test_vmovs_no_sreg(i32 %in) {
+; CHECK-LABEL: test_vmovs_no_sreg:
+
+  ; Check that the movement to and from GPRs takes place in the NEON domain.
+; CHECK: vmov.32 d
+  %x = bitcast i32 %in to float
+
+  %res = fadd float %x, %x
+
+; CHECK: vmov.32 r{{[0-9]+}}, d
+  %resi = bitcast float %res to i32
+
+  ret i32 %resi
+}
+
+
+; The point of this test is:
+;   + Make sure s1 is live before the BL
+;   + Make sure s1 is clobbered by the BL
+;   + Convince LLVM to emit a VMOV to S0
+;   + Convince LLVM to domain-convert this.
+
+; When all of those are satisfied, LLVM should *not* mark s1 as an implicit-use
+; because it's dead.
+
+declare float @clobbers_s1(float, float)
+
+define <2 x float> @test_clobbers_recognised(<2 x float> %invec, float %val) {
+  %elt = call float @clobbers_s1(float %val, float %val)
+
+  %vec = insertelement <2 x float> %invec, float %elt, i32 0
+  %res = fadd <2 x float> %vec, %vec
+  ret <2 x float> %res
+}