Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/CodeGen/SystemZ/cond-load-03.ll

@@ -1,159 +0,0 @@
-; Test LOCFH.  See comments in asm-18.ll about testing high-word operations.
-;
-; RUN: llc < %s -verify-machineinstrs -mtriple=s390x-linux-gnu -mcpu=z13 \
-; RUN:   -no-integrated-as | FileCheck %s
-
-declare void @foo(i32 *)
-
-; Test the simple case.
-define void @f1(i32 *%ptr, i32 %limit) {
-; CHECK-LABEL: f1:
-; CHECK-DAG: stepa [[REG:%r[0-5]]]
-; CHECK-DAG: clfi %r3, 42
-; CHECK: locfhhe [[REG]], 0(%r2)
-; CHECK: br %r14
-  %easy = call i32 asm "stepa $0", "=h"()
-  %cond = icmp ult i32 %limit, 42
-  %other = load i32, i32 *%ptr
-  %res = select i1 %cond, i32 %easy, i32 %other
-  call void asm sideeffect "stepb $0", "h"(i32 %res)
-  ret void
-}
-
-; ...and again with the operands swapped.
-define void @f2(i32 *%ptr, i32 %limit) {
-; CHECK-LABEL: f2:
-; CHECK-DAG: stepa [[REG:%r[0-5]]]
-; CHECK-DAG: clfi %r3, 42
-; CHECK: locfhl [[REG]], 0(%r2)
-; CHECK: br %r14
-  %easy = call i32 asm "stepa $0", "=h"()
-  %cond = icmp ult i32 %limit, 42
-  %other = load i32, i32 *%ptr
-  %res = select i1 %cond, i32 %other, i32 %easy
-  call void asm sideeffect "stepb $0", "h"(i32 %res)
-  ret void
-}
-
-; Check the high end of the aligned LOC range.
-define void @f3(i32 *%base, i32 %limit) {
-; CHECK-LABEL: f3:
-; CHECK-DAG: stepa [[REG:%r[0-5]]]
-; CHECK-DAG: clfi %r3, 42
-; CHECK: locfhhe [[REG]], 524284(%r2)
-; CHECK: br %r14
-  %easy = call i32 asm "stepa $0", "=h"()
-  %ptr = getelementptr i32, i32 *%base, i64 131071
-  %cond = icmp ult i32 %limit, 42
-  %other = load i32, i32 *%ptr
-  %res = select i1 %cond, i32 %easy, i32 %other
-  call void asm sideeffect "stepb $0", "h"(i32 %res)
-  ret void
-}
-
-; Check the next word up.  Other sequences besides this one would be OK.
-define void @f4(i32 *%base, i32 %limit) {
-; CHECK-LABEL: f4:
-; CHECK-DAG: stepa [[REG:%r[0-5]]]
-; CHECK-DAG: agfi %r2, 524288
-; CHECK-DAG: clfi %r3, 42
-; CHECK: locfhhe [[REG]], 0(%r2)
-; CHECK: br %r14
-  %easy = call i32 asm "stepa $0", "=h"()
-  %ptr = getelementptr i32, i32 *%base, i64 131072
-  %cond = icmp ult i32 %limit, 42
-  %other = load i32, i32 *%ptr
-  %res = select i1 %cond, i32 %easy, i32 %other
-  call void asm sideeffect "stepb $0", "h"(i32 %res)
-  ret void
-}
-
-; Check the low end of the LOC range.
-define void @f5(i32 *%base, i32 %limit) {
-; CHECK-LABEL: f5:
-; CHECK-DAG: stepa [[REG:%r[0-5]]]
-; CHECK-DAG: clfi %r3, 42
-; CHECK: locfhhe [[REG]], -524288(%r2)
-; CHECK: br %r14
-  %easy = call i32 asm "stepa $0", "=h"()
-  %ptr = getelementptr i32, i32 *%base, i64 -131072
-  %cond = icmp ult i32 %limit, 42
-  %other = load i32, i32 *%ptr
-  %res = select i1 %cond, i32 %easy, i32 %other
-  call void asm sideeffect "stepb $0", "h"(i32 %res)
-  ret void
-}
-
-; Check the next word down, with the same comments as f4.
-define void @f6(i32 *%base, i32 %limit) {
-; CHECK-LABEL: f6:
-; CHECK-DAG: stepa [[REG:%r[0-5]]]
-; CHECK-DAG: clfi %r3, 42
-; CHECK-DAG: agfi %r2, -524292
-; CHECK-DAG: clfi %r3, 42
-; CHECK: locfhhe [[REG]], 0(%r2)
-; CHECK: br %r14
-  %easy = call i32 asm "stepa $0", "=h"()
-  %ptr = getelementptr i32, i32 *%base, i64 -131073
-  %cond = icmp ult i32 %limit, 42
-  %other = load i32, i32 *%ptr
-  %res = select i1 %cond, i32 %easy, i32 %other
-  call void asm sideeffect "stepb $0", "h"(i32 %res)
-  ret void
-}
-
-; Try a frame index base.
-define void @f7(i32 %alt, i32 %limit) {
-; CHECK-LABEL: f7:
-; CHECK: brasl %r14, foo@PLT
-; CHECK: stepa [[REG:%r[0-5]]]
-; CHECK: locfhhe [[REG]], {{[0-9]+}}(%r15)
-; CHECK: br %r14
-  %ptr = alloca i32
-  call void @foo(i32 *%ptr)
-  %easy = call i32 asm "stepa $0", "=h"()
-  %cond = icmp ult i32 %limit, 42
-  %other = load i32, i32 *%ptr
-  %res = select i1 %cond, i32 %easy, i32 %other
-  call void asm sideeffect "stepb $0", "h"(i32 %res)
-  ret void
-}
-
-; Try a case when an index is involved.
-define void @f8(i32 %limit, i64 %base, i64 %index) {
-; CHECK-LABEL: f8:
-; CHECK-DAG: stepa [[REG:%r[0-5]]]
-; CHECK-DAG: clfi %r2, 42
-; CHECK: locfhhe [[REG]], 0({{%r[1-5]}})
-; CHECK: br %r14
-  %easy = call i32 asm "stepa $0", "=h"()
-  %add = add i64 %base, %index
-  %ptr = inttoptr i64 %add to i32 *
-  %cond = icmp ult i32 %limit, 42
-  %other = load i32, i32 *%ptr
-  %res = select i1 %cond, i32 %easy, i32 %other
-  call void asm sideeffect "stepb $0", "h"(i32 %res)
-  ret void
-}
-
-; Test that conditionally-executed loads do not use LOC, since it is allowed
-; to trap even when the condition is false.
-define void @f9(i32 %limit, i32 *%ptr) {
-; CHECK-LABEL: f9:
-; CHECK-NOT: loc
-; CHECK: lfh
-; CHECK: br %r14
-entry:
-  %easy = call i32 asm "stepa $0", "=h"()
-  %cmp = icmp ule i32 %easy, %limit
-  br i1 %cmp, label %load, label %exit
-
-load:
-  %other = load i32, i32 *%ptr
-  br label %exit
-
-exit:
-  %res = phi i32 [ %easy, %entry ], [ %other, %load ]
-  call void asm sideeffect "stepb $0", "h"(i32 %res)
-  ret void
-}