--- /dev/null
+; RUN: opt -S %s -atomic-expand -mtriple=x86_64-linux-gnu | FileCheck %s
+
+; This file tests the functions `llvm::convertAtomicLoadToIntegerType` and
+; `llvm::convertAtomicStoreToIntegerType`. If X86 stops using this
+; functionality, please move this test to a target which still is.
+
+define float @float_load_expand(float* %ptr) {
+; CHECK-LABEL: @float_load_expand
+; CHECK: %1 = bitcast float* %ptr to i32*
+; CHECK: %2 = load atomic i32, i32* %1 unordered, align 4
+; CHECK: %3 = bitcast i32 %2 to float
+; CHECK: ret float %3
+ %res = load atomic float, float* %ptr unordered, align 4
+ ret float %res
+}
+
+define float @float_load_expand_seq_cst(float* %ptr) {
+; CHECK-LABEL: @float_load_expand_seq_cst
+; CHECK: %1 = bitcast float* %ptr to i32*
+; CHECK: %2 = load atomic i32, i32* %1 seq_cst, align 4
+; CHECK: %3 = bitcast i32 %2 to float
+; CHECK: ret float %3
+ %res = load atomic float, float* %ptr seq_cst, align 4
+ ret float %res
+}
+
+define float @float_load_expand_vol(float* %ptr) {
+; CHECK-LABEL: @float_load_expand_vol
+; CHECK: %1 = bitcast float* %ptr to i32*
+; CHECK: %2 = load atomic volatile i32, i32* %1 unordered, align 4
+; CHECK: %3 = bitcast i32 %2 to float
+; CHECK: ret float %3
+ %res = load atomic volatile float, float* %ptr unordered, align 4
+ ret float %res
+}
+
+define float @float_load_expand_addr1(float addrspace(1)* %ptr) {
+; CHECK-LABEL: @float_load_expand_addr1
+; CHECK: %1 = bitcast float addrspace(1)* %ptr to i32 addrspace(1)*
+; CHECK: %2 = load atomic i32, i32 addrspace(1)* %1 unordered, align 4
+; CHECK: %3 = bitcast i32 %2 to float
+; CHECK: ret float %3
+ %res = load atomic float, float addrspace(1)* %ptr unordered, align 4
+ ret float %res
+}
+
+define void @float_store_expand(float* %ptr, float %v) {
+; CHECK-LABEL: @float_store_expand
+; CHECK: %1 = bitcast float %v to i32
+; CHECK: %2 = bitcast float* %ptr to i32*
+; CHECK: store atomic i32 %1, i32* %2 unordered, align 4
+ store atomic float %v, float* %ptr unordered, align 4
+ ret void
+}
+
+define void @float_store_expand_seq_cst(float* %ptr, float %v) {
+; CHECK-LABEL: @float_store_expand_seq_cst
+; CHECK: %1 = bitcast float %v to i32
+; CHECK: %2 = bitcast float* %ptr to i32*
+; CHECK: store atomic i32 %1, i32* %2 seq_cst, align 4
+ store atomic float %v, float* %ptr seq_cst, align 4
+ ret void
+}
+
+define void @float_store_expand_vol(float* %ptr, float %v) {
+; CHECK-LABEL: @float_store_expand_vol
+; CHECK: %1 = bitcast float %v to i32
+; CHECK: %2 = bitcast float* %ptr to i32*
+; CHECK: store atomic volatile i32 %1, i32* %2 unordered, align 4
+ store atomic volatile float %v, float* %ptr unordered, align 4
+ ret void
+}
+
+define void @float_store_expand_addr1(float addrspace(1)* %ptr, float %v) {
+; CHECK-LABEL: @float_store_expand_addr1
+; CHECK: %1 = bitcast float %v to i32
+; CHECK: %2 = bitcast float addrspace(1)* %ptr to i32 addrspace(1)*
+; CHECK: store atomic i32 %1, i32 addrspace(1)* %2 unordered, align 4
+ store atomic float %v, float addrspace(1)* %ptr unordered, align 4
+ ret void
+}
+